Board Thread:Roblox help and discussion/@comment-33520815-20180130070020/@comment-26397550-20180131165914

Yeah, paying to win something is a no-no, paying into a group to get it paid back out or redistributed is means for scamming and termination, but the rule otherwise is not enforced as harshly as it sounds. The YouTubers scammed the viewers hence their termination. Plenty of giveaways and contests are held, Roblox rarely intervenes unless it is causing an issue.

The policy seems like something they just have in place to fall back on.