The VRChat copytag seems to be fairly useless. It's being slapped onto random commissions of people's custom avatars, such as post #4699127 and post #4704679. The issue with this is that they sometimes get both original + vrchat and sometimes they instead only get vrchat. Further, a lot of them are indie virtual youtubers that get tagged with it.
Should custom models and vtubers really be getting tagged with the copytag? It'd be akin to tagging a twitch streamer with twitch.tv. Which, after doing a quick check, is something that is actually happening. I don't think they should.