I've just read a scam accusation against gp: https://bitcointalksearch.org/topic/game-protectcom-did-not-refund-my-money-and-stopped-replying-to-my-emails-5183189 (and a copy http://archive.is/H1Q4h )
This claim still needs some development, but the OP of that thread would be able/allowed to open a type 1 flag against GP.
With sufficient support, it would give GP the "!!!" tag next to his trust score, and show a red notice (instead of neutral yellow) above his threads.
GP is a trickster. But yeah, scams are not moderated.