I agree with you, vendors should follow store policy in this. As far as I recall, when a seller submits a product here, they confirm that they do agree with and will adhere to the store policy. Rendo should indeed make sure the readme's are in agreement with that and no extra clauses are in there.

For what it's worth, you can safely buy my stuff ;-)

Artwork and 3DToons items, create the perfect place for you toon and other figures!

http://www.renderosity.com/mod/bcs/index.php?vendor=23722

Due to the childish TOS changes, I'm not allowed to link to my other products outside of Rendo anymore :(

Food for thought.....
https://www.youtube.com/watch?v=pYZw0dfLmLk