Typing on a computer is no longer a solitary in your room experience. Lots of people can connect from their PDAs or cell phones. I would wager many of the undergrads that post on here are doing it in class, between classes, or while they're in transit from one place to another (hopefully not driving, though).
If this was 1985 and an undergrad was posting on here constantly - yeah. They'd probably be a bit of a freakazoid. So would an undergrad who carried around a phone.

I'm sure girls 20 years ago did the same thing with their rush experiences, they just wrote in a journal instead.