I get not letting others claim it as their own but adding heavy amounts of watermarking or making them very bright and flashy kind of ruins the point of making the model public as more people focus on the bright and easy to see watermark rather than the model itself. Also all you have to really do is say for people not to claim it as their own then others who use vrc will take notice for you subconsciously that way if we see someone doing it we know it isn't theirs and we may say something about it.