People join and submit at the same second.

People who join the jam and submit a game after a very short time, blatantly without having read the rules of the jam. I was forced to hide the games submitted before the end of the jam, in order to skim the jam of clearly spammy games.

Please report the projects, we will ban them from participating in jams if they are abusing the submission process. There is a report button on the submission page that you can use to send the report to us.

Keeping submissions hidden during the voting period is also a good way to prevent people trying to submit early just to promote their games.