He is not because you have done that thing in the past although It has been resolved and I do think its rather innapropriate. should be neutral trust
you consider anyone as scammer just by your own experience.
His own privilege, he can never remove that negative trust and it is up to him, be gratefull, 1 month is not long enough and you can always use escrow so that your sites reputation isnt affected by your negative trust
Negative trust isnt killing your sites reputation, you can always prove it wrong by not doing scammy behaviour and also in 1 month it will be remove
that will be good for the trust System.
Trust system isnt moderated here, anyone can put negative trust to anybody as per he wanted to but if you are on default trust , your trust has more weight than the others
The same case on vod, he will remove it in 1 month, so no big deal. Use escrow, you can protect your site's reputation
The game is fair but you need quite alot bankroll to beat the other, otherwise you can leech the game by betting the same choice with the big user,. Overall 6.5/10 , might be better in the future