Gaia doesn't control offers. That's all on the sponsors.
Also, next time be more careful about what you click and what you download. That's more or less a very important cautionary rule about being on the internet.
They don't "control" them directly no, but they do determine the content they put on their site. Any content they allow on is 100% their responsibility (And please not I do not mean user posts). This is not only from a moral standpoint but a legal one. Obviously I would never use thier cash offer services again and I am careful about what I do on the Internet. I just did not think Gaia would link me to malware and offer me reward to go there. My trust in Gaia Online was misplaced.
Also I hope you understand that it was not an intentional download, it was a drive by download. My AV detected and blocked the site however.
neutralThere's a thread for that, which was previously mentioned. They don't really take care of those sort of issues in Site Feedback. I know there was a report thread in the offers subforum, but they seem to have changed things around a bit since I last looked and I don't know where it is now. I'm heading off but if you can't find it, someone else may pop by with a link or more information.