Sure only 300-400 participate but the class itself was indeed 1500 first year students support by 4 ambassadors. I think it was a fair try and glad to hear that we have all learned from it.
I guess the main think I wish to emphasis is that we have in place mechanisms to verify the edits of contributors through this program and we cannot simply expect the community (which is in fact very small in many academic areas) to take on this role. As mentioned by others may be funding from the University to pay for grad students to specifically review all the work?