Disclaimer: you will die. Lots. The adage is "don't fly what you can't afford to lose". There's no equivalent of "this is my special invulnerable armor and the sword of my great-grandfather", because when someone inevitably comes along and blows you up, it'll be their special invulnerable armor etc.
Also, the concepts of fraud, scams, and so on are unusual in Eve in that they're actively encouraged, or at least explicitly tolerated (with few exceptions, like you can't claim to be an official representative of the game's publisher). This is known as "adding content". As in, if you complain that user Foo defrauded you out of a few hundred dollars of in-game currency, the response will almost certainly be along the lines of "wow, Foo added a lot of content to your game, huh! You should thank them for it. You can't get that kind of entertainment from an NPC, can you?" This fosters a certain level of paranoia.
Based on the number of incredibly clever scams that exist, extreme paranoia is correct. If something looks too good to be true, it is VERY likely to be a scam. (e.g.: there are scams built around selling an item for a price that is lower than a buy order somewhere, seemingly promising free money, but when you attempt to sell the expensive item, it'll get rejected due to some quirks in how some systems interact)
I would be surprised if that were the case. IIRC it worked by using a skill that let a player put up a buy order without taking the entire cost of the order out of their wallet. So the player could then ditch all their remaining money, which wouldn't allow the buy order to be fulfilled.
What changed that disallows it? Did they remove the skill? Can a wallet go negative? Even if they forced the buyer to take the item and give the amount of money reserved to the seller, the scammer could theoretically just make sure that the buy order is close enough to the sell order that the seller still receives less than they paid. (though it makes it seem like a less juicy payout, so people would fall for it less)
Disclaimer: you will die. Lots. The adage is "don't fly what you can't afford to lose". There's no equivalent of "this is my special invulnerable armor and the sword of my great-grandfather", because when someone inevitably comes along and blows you up, it'll be their special invulnerable armor etc.
Also, the concepts of fraud, scams, and so on are unusual in Eve in that they're actively encouraged, or at least explicitly tolerated (with few exceptions, like you can't claim to be an official representative of the game's publisher). This is known as "adding content". As in, if you complain that user Foo defrauded you out of a few hundred dollars of in-game currency, the response will almost certainly be along the lines of "wow, Foo added a lot of content to your game, huh! You should thank them for it. You can't get that kind of entertainment from an NPC, can you?" This fosters a certain level of paranoia.