half asleep, so will keep it to the point, avoid it (which i know you knew, but others here might not know). gz has also resulted in the longest thread in history of scam.com currently at 208 pages! link to last page http://scam.com/showthread.php?p=208099&highlight=greenzap#post208099
and for those that dont know, gz is the reason ebay started prohibiting various payment methods from being metioned in listings. ebay did it when truth behind gz started to unfold, in order to protect the community from scammers (should mention, gz being the reason is just theory myself and several others have -- ebay never said that it was reason. this theory is based upon the timing of ebays announcement, the wording, and that listings with gz in them were some of the very first to get the boot)
btw, just a word of advice to anyone that decides to post on scam.com about gz. keep identity private. use totally different name than use elsewhere. some of us made that mistake and ended up with all sorts of threats being made against us, both financial and physical.