mapleleaf, I know that in my group at least metagaming is actively acknowledged and cross board gaming has been accepted. It was agreed that since it's the same players every time everyone has the opportunity for cross board diplomacy and it's just as non-binding as intra-board diplomacy. It made for some very interesting play.
alamothe, I would actually not expect them to stab me in one game simply because I stabbed them in another, especially not for the sake alone. That would be quite irrational. And yes, you can complain about them to me, and I will talk to them. That doesn't mean I will ban them or it will lead to anything, because they might have stabbed you for very good reasons...
In this case, it was plainly admitted that he was using it as a cross board bargaining chip. I said I wouldn't ban Ichthys, I'm just reprimanding him, and I didn't even say I would ban future cases, but I said I would consider it grounds for a bannable offense and definitely take it up with the other mods.
These are not new offences... we've always known that metagaming to be a potential problem. I was an early anti-metagaming advocate back when we didn't have authority figures such as mods. The general attitude on this site has been to let you guys do what you want and expect you to behave maturely and not be dicks to each other. I'm happy to say that it's worked out fantastically with a few small exceptions, this being one of them. There isn't any ten commandments written out because we haven't needed one except in a few small cases, and I think that such authoritarianism would wouldn't foster the right environment. That doesn't mean you can go around ruining the game experience for other players and expect no retribution.
If you haven't noticed, the majority of the active forum community seems to be against Ichthys and his metagaming and disagrees with you. I haven't taken any action besides reprimanding Ichthys because in most cases this is enough. Otherwise mods generally encourage players to enforce their own rules INSIDE the game. We've directed this response for racist and offensive remarks made in-game, and we expect that metagamers will usually be dealt with similarly.