I believe SharkBlox or KreekCraft said something about the moderation of UGC.
From what I’ve heard, UGC used to be filtered through the modertion system right when you upload it to the platform, but now, the moderation system can’t handle so many requests. That’s why now, UGC is only moderated if somebody reports a violation of ToS in a UGC item and if Roblox approves that there’s an issue.