Quote from: KWH on December 23, 2015, 04:33:02 PM

Nope, it's not Trust abuse. Anyone can leave whatever they want as feedback, especially if they are leaving as a warning for suspected thieves. The key is to make sure it isn't frivolous feedback resulting in the dilution of your own reputation.
Your continued posturing for "proof of scam" is a red herring.

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Anyone can leave whatever they want as feedback

That's where the abuse comes in. They can ruin anyone's reputation without any reason.

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especially if they are leaving as a warning for suspected thieves

Why call him "thief" if he is a "suspected thief" ?
What is the reason that you are suspecting him to be a thief.

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Your continued posturing for "proof of scam" is a red herring.

That doesn't make any sense. Asking for a reason or proof that someone have done this thing in past is not a "red herring".