I can understand some one setting up a paysite, when I installed The sims I didn't read the EULA just went to the bottom and ticked accept.
Most people do that. But when one is planning to sell stuff, one should double-check if the stuff one is selling isn't copyrighted or otherwise unsellable due to legal stuff. I think it would be natural to check. And it's stupid to sell things made with
free tools made by the community.