Milovana.com

Perhaps the "rating abuse" issue could be reduced by permitting only rating a tease once per user.

I don't think it counts if you rate it more than once... Maybe you update your previous rating but I don't think it adds a new one... I gave Estim Laboratory 5 stars every time I completed it and it did not change overall rating of the tease :)

I also don't know if rating again changes your rating but I agree that it does not add a separate rating to be tallied.

That being said, there IS an exploit to rate a tease unlimited times with a single account that needs to be stopped. This is not something a user would accidentally stumble upon but would go out of their way to do.