I've always had some reservations about pointing people here and to the TA predecessor, largely because I don't want to dilute the high standards here (which I'll freely acknowledge are generally higher than my own abilities). On an individual basis, I'll tell people that they need to be prepared (and grateful for) terse answers such as "See 108(xx)" or "Rev. Proc. nnn", and conversely, be cautious in giving answers unless you're sure you can back it up.
But every so often, I'll see a thread that just cries out for a link here, typically in forums that are largely non-credentialed tax preparers (or maybe RTRP as the most common credential). These aren't amateurs, but many limit their authoritative sources to the IRS instructions, pubs, and either QuickFinder or The Tax Book.
Am I being overly protective of this forum?