I also foolishly went over to the site and didn't get any issues (foolish because if your virus/spyware software was correct I would also be setting myself up, too). That said, generally, if you get the warning from your software--that's a good thing--it discovered the problem and recovered for you. The problems come when you visit a site, the site has been compromised and your virus/spy-ware software doesn't catch it.

Sadly, in today's world, it is not inconceivable that sites will become compromised. Just like the bad dudes are out for your machine, it is much more lucrative for them to try to hit a server. Our local bike club's site was compromised last year. The hosting service had a hole and someone got in and installed a bogus home page. The bogus page had an active-x control with an known attack. Normally, I don't allow active x controls to run, but I trusted the site...oops, even sites we trust can become untrustworthy if compromised.

Anyway, while the best thing to do as a human being is to report the compromise to the webmaster, realize that in some cases the innocent, well-meaning person that reports the compromised site to the webmaster has been arrested.