Nobody here thinks that unprotected sex is safer than using a condom, but what people have been discussing is unprotected sex between two people who are both free from any form of STD. It's easy to get checked out, and if you know that both you and your partner are clean, and the girl is on some form of birth control, why not have unprotected sex?

You cannot magickally create an STD just by having sex, you cannot catch an STD from someone who doesn't have one, you cannot give someone an STD if you don't have it yourself.