For the most part on this site, you can't fake an iTrader reference...
because...
A) You need to link a trade thread where the deal was made
B) Im sure mods review them all
I doubt the mods check them all, watching the dates on when the refs were made is more important imo, if a guy got 10+ refs on the same day thats a red flag, or if they are from alot of low itraders is another red flag.