I think that you should just include like permanent links at the top of the page to erowid and other sites (maybe totse.org) and ask people to check them first. but then again, no one would. I dont really have a problem with people posting the same thing over and over again (as long as it isnt like on the same page) I mean it is a message board, not an archive board. and with like 13000 threads in "the lounge" alone, everything has already been discussed. now it must be discussed with new people. thats the way I see it anyway.