I may have missed the crash where PPRuNe armchair experts got there first, but I don't remember one.....
Fair comment, but recall that the CBS/Dan Rather/Memogate scandal was uncovered by 'armchair' experts on the web who observed that the 'typewritten' 'official documents' presented in evidence were produced on a computer using software that wouldn't exist for another twenty years. So on occasion amateurs can help, and probably don't do much harm the rest of the time.