If you look at JonNYC's Reputation thread, you will see that this is EXACTLY what I predicted would start happening, and there is no way to stop it, IMO, unless you simply turn off the reputation feature. I'll find the post.
EDIT: here it is:
http://www.flyertalk.com/forum/showp...5&postcount=53
I thought of another problem: say you are an agent provocateur (like those big words?
); you could leave a member bad feedback and sign your name with a pseudonym NOT YOURS, creating animus between two innocent parties, like a Tom Clancy novel.