Excellent idea! I know Google works pretty good for finding answers by just googling the error message, but not rarely you just get unanswered forum posts or stupidly designed message list archives.

However -- NOT on a wiki! Please oh PLEASE! Can't be pretty-presented as Scott says, the data can't be consolidated or bitshuffled or handled in any way except as strings. Euch.

Could probably be thrown together pretty fast in rails.