> This should be a warning sign to any game wanting to have community servers. This is not a feature you leave running in the background. It requires maintenance.

Which, to most game developers, looks like a great reason to not have community servers.

I don't have any solution for this.

When developing anything (including games, but really anything that accepts user-generated content), the developer MUST ask and address in their design: “What possible ways will this be used to make spam?” Humans suck, and always eventually turn every unmoderated resource on the Internet into spam. I wish we could edit this shitty gene out of human nature, but we can’t.