Ones like this are not technical:
They're just chatter. It's hard to stop people answering questions like this because they're easy and have no wrong answer; it's nice to relax sometimes and chat... but that's what forums are for. It pollutes the purity of StackOverflow as being a purely technical programming site (which is what I love about it).
I can't down vote questions like this because I haven't enough reputation, and it wouldn't make a difference against 40-or-so other upvotes. If I post a comment like 'please post technical questions only' I have fears of causing a load of discussion about what is and what is not a right question to ask.
I basically hope that there is some way to keep the user base strict about being technical as possible, I know this is the aim of the creators Spolsky and Atwood and friends.