Fortunately, this is not entirely true.
Ever since I've been on these boards, there's been one bloke on here - "burningswordsith" I think he's called, something like that - with a friendly warning in his signature.
Add to that his absence from the list of recommended armour sellers and general discussions within the community, and I have never ever once been tempted, believe me!
I reckon a few troopers have been saved from parting with their hard-earned cash.