You know that bit that says "your question may already have been answered" well how about adding a bit that says "and you will be more likely to get an answer if you post it in the right flippin' category" ....okay maybe not in those words as such....and gives you a chance to choose the category to post it in?
It should also ask for ALL the relevant info, for example people doing crosswords often say such and such 9 letters without telling you what they already have, or put a string of letters and question marks like this ?s???d?t????e and dont bother to mention that it is two words.