If you want it to stay that way, you should probably tell less people to buy a Mac. The only reason mac viruses aren't as widespread is because they have such a small share of the home computer market. As that grows, the OS becomes a bigger and bigger target.
Trust me, I could write a virus for your mac that would make you cry.
BINGO! I hate seeing Mac people say "Mac's are so secure, never get a virus, blah blah blah" when you said exactly why.
Back on to the topic, I've never had an issue with this site
I do remember closing an IE window at home and my anti-virus blocked some attack, but unsure if it was from here or not. I'll pay more attention and write down the details if it happens.