Oi, online people...I've had a run in with one through MySpace. He's really nice, mind you, but can't make up his mind.
He lives about 15 minutes away from me and goes to my neighbors house all the time and yet I have yet to meet him, haha. We were supposed to meet one time and he sounded all for it, but then he decided not to at the last minute.
Then I got a job recently and I told him about it, and mentioned he should stop in and see me sometime. Took it completely the wrong way. First he asked if I was asking him out, and I said no, I was just saying if he wanted to stop in to where I work I'd be there, heh, and then after that he asked when I work. I told him and then he wanted to know how I'd react if he just walked in and asked ME out....so I sorta implied it wouldn't just be that easy. Still talk to him like normal, but he hasn't stopped in. Then the other day he asked if I liked a band, and said if I did he'd have to meet me. I didn't take him seriously, but said in general I liked the band because I did. He dropped it after that.
Now, there's an age difference, and I found out recently that's why he's been just flirting and hasn't taken it past that because he's afraid to....but he still does constantly, even while liking another girl at the same time @.@.
So, I'd say your online guy is probably asking out of curiosity to keep it as a possibility in case he wants to, but I wouldn't expect him to actually do it. There's just something sort of surreal I guess about meeting online people so sometimes they seem open to meeting and then as soon as something is planned they change their minds.