The internet is the inconsequential part though. Would you ask a guy you met off the internet to use a rubber, but not a guy you just met at a bar? It's strange dick either way. Mathematically, there's no better chacne of you picking up something from the net guy than the bar guy. The internet is just a means.
And yeah, the internet opens people up to the seedier part of sexual interest. There are liars on the internet, sure...but is everyone you may meet at the grocery store honest? You may meet a freak, pedophile, or devil worshipper online. You can meet them just as easily at the IGA or Target.
Personally, I don't understand anyone with an abnormal aversion to internet dating. Yeah, I wouldn't suggest you go into love chat with someone thousands of miles away, but if you know a way to talk to people within your general vicinity, it's nothing more than calling one of those late-night chat lines or speed-dating. Plus, I actually like it a bit more because you can get to know someone without the hang-ups associated with superficiality, nervousness, or awkward anxiety. I could know more about a woman through two weeks of talking online than six months of dinners, movies, and miniature golf.