I actually prefer to answer the 'serious' ones (not too serious like about problems or deaths etc) making them funny by saying funny non-serious stuff for an answer.... ^_^
To answer your question: cause it is easier and does not require much thought, people hate to think...
hm... maybe because when you answer random/ funny question you don't really have to think about your answer as much you could just say anything you want to! ^^
Serious questions are very difficult to answer hence seriousness. Coming i guess people often forget the present troubles they face and such so it is easy to just answer those questions that does not demand much.
I dont know thats just how i feel:)
Cause this is a fanclub of randomness and people who want to aks serious questions could maybe make another club called 'Answering the questions' or somwthing... That was just my guess,there's probably a better reason!