I see it more as introducing a trivial inconvenience which keeps people I know in real life generally away from my (often frank) online postings. In some sense it's just psychological, since by nature I am a very reticent person and it makes me feel like I can jot out opinions and get feedback without having to agonize over it. (That's also why I'm not necessarily comfortable directly listing out personal details which could probably be inferred/collected from what I write.)
FWIW, this is the same as my rationale. It is theoretically possible to trace Alsadius back to me-the-human, since I'm sure I've given enough identifying details to narrow down the pool of candidates to one given perfect information, but it is sufficiently difficult that I doubt anyone will actually bother.
If you want people to ask you stuff reply to this post with a comment to that effect.
More accurately, ask any participating LessWronger anything that is in the category of questions they indicate they would answer.
If you want to talk about this post you can reply to my comment below that says "Discussion of this post goes here.", or not.