How do Flexa Network payments using AMP as collateral actually prevent fraud?

The way I understand it when a transaction is reversed AMP is liquidated from the pool of stakers, distributing the loss and thus decentralizing the risk of fraud while providing security to merchants. But what happens to the fraudulent actor?
Do I just get a free coffee (or car, or house)?
For instance, what's to stop me from just continuously making fraudulent transactions using ETH, never actually paying out the balance – can I theoretically just get things for free while the network bears the burden?
I suspect I misunderstand something about how these crypto transactions play out, can anyone comment on this and educate me as to how you can prevent people from exploiting the network?
submitted by /u/KhanDescending123
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