In addition, maintaining an online persona that's too much different from one's own is like any other form of stretching the truth: it can be difficult to pull off. If one's speaking the truth, it's easier to fill in holes. One has the truth to observe or recollect and/or fall back upon, which is easier to track than fabrication.
It's not worth the effort to impress. I'd rather just 'be.'
Only if it's needed for the sake of discussion. Which it rarely is. So, pretty much 'no.'do you care?
People gonna think what they gonna think.