Nope. For example, I have no idea who you are as a person, and that doesn't bother me.
Whoever you are, if you're interested in talking, cool.
Or more to the point, if you're interested in talking in the non-troll persona you've been speaking with, cool. :)
You might be the world's biggest troll as a person, but this identity of yours isn't, so I'm happy to keep exchanging, because it's not the person that we engage through here.
(I assume you're not actually trollish person, but the point is, it's the identity I'm talking to, regardless of whether you actually are a trollish person or not)
But as a person, I don't know if you're employed, but if you are, aren't there some things you wouldn't want your employer to see you talking about? Having that work-life separation? Being able to express yourself outside of any fear for how it might impact your career?
We all wear different masks in daily life. We talk to parents differently from how we talk to friends.
Really, those are all cases of having different identities.