The first question I ever posted here had been in my mind for several decades before I finally got round to asking it!
Otherwise, my (fairly rare) questions tend to be in CB and, before posting, I'll ask my myself whether I'll have enough time to 'feed' the thread for a while. (I hate it when someone starts a potentially interesting thread in CB and then doesn't acknowledge any responses).
Most of my answers are in sections such as 'Technology', where an answer is either right or wrong. So, if I know an answer, there's no reason for me to delay posting it.