Psyringe: People can contribute points to their team by buying games
bansama: Where did you read that? All I see is that get 10 points for crafting that silly sale badge and 1 point for crafting any other badge. It's all about the badges and, as far as I can see, nothing about actually buying games.
You're correct, I mixed it up with the card counter that's displayed when you buy a game. Sorry for the misinformation.
bthor79: What do the points stolen mean?
Can the teams steal points from each other?
I think you can (sometimes?) change teams when you craft a Summer Sale batch, and that removes your contribution from your previous team and adds it to the new team.
I'm not sure though, I haven't crafted a Summer Sale badge yet. To me it seems more efficient to just sell the cards.
I've seen people complaining that it's a "pay to win" competition because "everyone is crafting badges so that they can get into the winning team". Imho that would be a pretty stupid thing to do since you'd have to invest 3€ worth of cards for a payback of 0.90€ worth of cards plus a negligible chance to win games from your wishlist, but who knows ...