You realize though that places that run Linktrust can't shave you. They can add credits/take away sales after the fact though. But you as an affiliate should catch that and ask why. If you aren't sending fraud traffic then it's not your fault the customer does a chargeback.
how do all networks track at the advertiser level? via a provided network url right? what on earth would then prevent a network from simply giving the advertiser a url which rotationally fires the main network link some percentage of the time and another that doesn't pay affiliates the other portion?
not trying to derail this thread, but isn't this technically very easy/possible?
bottom line is you have to work with people you trust, that's the best assurance you've got unless you own everything yourself