You wanted to show her butt, and she's also go a nipple showing and you "didn't see nudity"??

Am I missing something here?  I know what Renderosity's definition of nudity is because they pretty much spell it out ... but I am really curious as to what your's is.

Also, honestly, I don't much care what Renderosity's justification is for their thumbnail policy.  They are a business.  It is their policy.  If a company comes up with a policy that I can't live with, I don't do business with that company.  The only time I bother to complain about a policy is when I think the loss of my business will make a difference to the company.

Since you didn't bother to read the policies on nudity in thumbnails, and since you don't "see nudity" in a picture with a naked woman with exposed breasts, I'm not the least surprised that you got a reminder.

Could be worse, could be raining.