Things like that are kind of borderline. Maybe technically ok, but still kind of weird and off-putting for some. Put yourself in the shoes of a 30 year old person joining a community to discuss the books, and they're immediately greeted by your question. What impression do you think that gives? Introduction posts are where people get their first impression of the site, and so just keep that in mind. AMA, forum games, rp: Go wild, ask as many weird questions as you want. I'd encourage ya'll to ask normal questions that anyone can answer, and that won't potentially weird people out. Remember that you're not just talking to people your age, but all sorts of folks.