I'm not totally against it, but it would take a lot of time for me to get comfortable enough with someone that I want to meet in person. I think there are some people on this site that would benefit from a meeting, you just have to be careful. Talking on the phone, emailing, skyping, are all good ways to get comfortable with someone you're wanting to build a relationship into meeting the
Personally, I've met two people here that I would consider meeting, if I continue to get closer to them