If you wonder, send the mods an email at [email protected]

I regularly encounter the situation you describe even with players that have completed 10+ games. I don't think it would help.
And remember, other people could have other objectives than you. They might value revenge over a draw, which is a legal way to play (or so I've been told).

I have emailed the mod's a few times but so far, they never found any evidence. I realise that some people have different mind sets for playing (the views on this forum is prove of that.) I just think that having the minimum games its more likely that the motive is revenge/stupidity rather than an being a multi.

Vdip has features like that.

New players have to complete a number of phases before they can play in more then 2, 4, and 7 games respectively. Also you can set a number of phases when you make a game and only players with that many phases or more can join.

I wonder whether some kind of mentoring system might work - a bit like SoW but more longer term and lower key.

Suspected cheating is almost always players being unbelievably good or bad (or actually cheating). Don't hesitate to contact us though, because the true positive rate on these is pretty high.

The best way to get good players in a game is to ask on the forum and screen them. Someday, we'll get GR integrated so that you can set limits based on that.

Wanting revenge can be understood, but it risks infringing on the Metagaming rule. Metagaming can be allowing "things from outside a particular game to influence the way a player plays in that game"
An easily understood example of Metagaming is player A helps player B in game X in return for player B helping player A in game Y... In other words, trading favours in one game for favours in another game.
The "opposite" is a bit harder to define, and prove.. But a cautious player should imho definitely avoid linking hostility towards another player in a game to factors from outside that game.
You also should, imho, be careful when playing multiple games with the same player, or players. We had a very good alliance in one game, let's do it again. I'd suggest you make it clear that whilst a former alliance went well, you will decide to make, or not make alliances because that decision is, or is not, in the best interests as you see them for the country you have in the specific game you are in now.
I for example have an imho risible Forum squabble with a certain other player, he has muted me, but I cannot be bothered muting him. But I've made it clear I don't ever want to play in a Diplomacy game with him. If I see a new game that he has joined, then I will not join it. I expect him to behave similarly. I think it would be just too difficult for either of us to put aside our mutual dislike and not have it influence our actions. It's a bit like refusing a client because of a "conflict of interests".