Well, I don't know if this would end up giving him yellow/red cards, but the guy that already scored one goal could just play so his team wouldn't make goals in order to make sure he proceeds. I'm not saying the guy on team Z would do that, but it's something that probably doesn't make anyone...
@flannan People have been theorizing this on other comments, but they probably used to be bandits, or did some nasty stuff on the past. Hence why they are hiding their identities, not because they want to make new parties, I would presume. If they could indeed keep on scamming people and getting...
@flannan They aren't adventuring, they are running a scam where they bait newbies into joining their party, make them do the dirty work for them and reap the reward. They are probably wanted if they've done it in the past as well so they wouldn't want to stay in the same place for a long time...