I am a regular user of the forum and am not aware of such policy.
I can't speak for others, but personally I don't consider at all if somebody did help others before trying to help him or her.
If you want to receive useful answers, my advise would be : "just ask". Only choose an accurate title for your post, choose the relevant forum, be as specific as possible about your issue and its context, e.g. what are your hardware and distribution and if something didn't go as expected, what did you do exactly, what were the results, what were the exact error messages if any, etc. And of course before posting make sure you have read the relevant documentation and try to know if by chance your question have already been answered, especially on LQ.
Last edited by Didier Spaier; 09-10-2012 at 06:10 AM.