Ideally, I would say, this entirely depends on the person you are asking. But since we are not living in an ideal world, I have to adjust my answer a bit to our reality:
It depends on who you ask, but it’s important to note, that a VAST majority of people who expose themselves publicly do this for the wrong reasons. For example, they do it, because they are psychologically tricked into doing it. You can see that behaviour with YouTube creators. They may create content for years without ever showing their face, sometimes not even letting others hear their real voice, and then, after years of community engagement and constant asking for face reveals it happens; they reveal their face, because they have been asked a million times to do so and are tricked into doing a face reveal because of reasons like “so many years I did not show my face and nothing happens; what could go wrong if I actually did?” or “so many YouTubers already show their faces, why shouldn’t I show mine?” and other psychologically tricking reasons. I call them “tricks” because those reasons never invalidate the reasons this person had to not show their face, when starting their YouTube career, in the first place. They all still exist. Fear of harassment, fear of stalking, fear of being another Chinese tracking target (remember how Tencent forced Blizzard to cancel that Hong Kong guy?) and others. All these reasons still exist and I’d say if you have hundred thousands or even millions of viewers, it takes only a single moron out of those millions to make your life crappy, by stalking, harassing or just annoying the crap out of you.
So, to clarify:
The person has to decide, but in this world the person has to educate himself very extremely well, to make an educated decision. Doing an educated decision, especially when talking about exposing oneself to the public on the internet, is extremely important. Just exposing oneself and then complaining about weird stuff happening afterwards, is the wrong thing to do. If one decides to expose himself, he needs to be sure to know all the culprits such an action comes with, by default.
Not sure, if this is a typo, or if I am just misunderstanding.
I will answer the following question:
Are you enjoying yourself so much that you don’t mind not exposing whatever you say to the entire world in perpetuity?
Sometimes I would like to share stuff, of course.
Sometimes I have, in my opinion, good ideas, that I’d like to share. Sure, that happens.
But I always remind myself of things like the following:
- The addressees. Being on social media means you would address so many people, who read social media posts from several people and most of them probably would nod to what you say and that’s it. If you have friends so close and who are so much on the same page as you are, you don’t need social media to engage with them with new ideas, but you can share them private through instant messengers.
- Everyone sees your stuff. Oh, blabla, but we can make posts for friends only, bla bla. Right? Wrong. Your communication is only as private/secure, as the worst addressee’s behaviour. So, if only one of the peers reading your posts is strictly anti-privacy, even if they don’t even notice that they are, your things are exposed by default. Sure, it’s much worse, when the posts are public in the first place, but the point is, that even making them friends-only doesn’t help much. Especially if you have the amount of friends, you displayed earlier. 200 and of those 30 who you seriously engage with. There is no humanly social and not fear-mongering way of forcing 30 people to follow your privacy guidelines. (Sure, one could say that could happen in instant messaging, too, but there you probably don’t talk to 30-200 people at the same time, anyway. So the risk is extremely low, compared to the above example.)
- You are accountable, responsible for everything. Even things you posted YEARS ago. Let’s say someone doesn’t like you or perhaps is a business rival of yours. With your posting habits, that rival could fish out some post you made 6 years ago, where you misworded something. Or made a joke, that could be misunderstood. Or you don’t even misworded anything, but you are misquoted on purpose. Sounds very innocuous. Right? Wrong. There are hundreds of examples, that show how entire lives, entire personalities have been publicly discredited due to one single tweet. Sounds ridiculous, but reality indeed has become ridiculous in the past 10-5 years.
- What do I change? What do I really achieve? Too many Twitter wannabe heroes think that when they issue a certain hashtag crap or retweet some crap someone said a minute ago or write some weird political and wannabe witty statement, that they are doing something. They feel good. They think, wow, I did my hero job for today, now I can go back to my counch and watch Netflix. So, the reality with that is, that most of the time such interactions do not change the world, it does not change the readers. It does not even change you; actually, it does the opposite: it reinforces who you are and, usually, you are nodded to by your peers for that statement, again cementing who you are into stone. However, if you want to free yourself from yourself and become smarter, quicker, more skilled, more able, more creative – in short – better than who you were yesterday, then you can’t just repeat the same crap over and over in your personal echo chamber. Ironically, even people who get attacked for what they say a lot on social media, are usually re-inforced in thinking the way they already did before, instead of engaging and seriously considering the other side’s expressions to perhaps bear at least a seed of truth. Therefore, don’t reinforce who you are. Become better. You can’t become better by reinforcing your yesterday through relaxing on social media with your closed circle, or as pointed out in the other example, let yourself be attacked and reinforcing your yesterday ironically through that.
If you really want your word to weigh something and not be a random dude on Facebook, then do something noteworthy and you will be noticed without any significant social media reach. Okay, admittedly that sounds way easier than it is and different situations turn out different, but my point is still valid: being on social media and spreading your thoughts almost never changes anything. It just re-inforces your yesterday. Sometimes it even re-inforces the world’s yesterday, by keeping everything as it is, instead of letting things change for the better.
Hope, I did not go on a too high meta level here. 
So, to answer the questions: it’s worth the trade-off!
And humans are able to pretty much accommodate to anything.
If you grew up with your cat crapping onto the table everyone eats off, you would have become used to it and it would be the most normal thing on earth for you.
The same way, you can get used to not using Facebook. I assure you, after a couple of months or, if Facebook is really a drug to you, after a year you won’t even feel the need to go on there again. You will have moments like “what is Facebook again?”. That’s the moment when you got so used to not using it anymore, that you are healed and able to proceed with your life.
and this sort of brings us back to where we started, the problem of being followed around by FB.
