I do most of these comment checks and replies on my first coffee, it's too early in the morning! XD
Seriously I think it may boil down to a keyboard warrior syndrome. I don't know that too many people would say to people's faces (either while occupying the same physical space or looking at them on a webcam) or even write into a "sternly worded letter" some of the stuff they scream into microphones (on voice chats) or pound on their keyboards :)
I do feel obliged to add that despite that text chat has been awesome for people like me who are entirely too slow to keep up with a voice/face to face conversation at the best of times XD
I cannot wait to meet you in person. Attempt to match people’s pace from online chat to in person is easier than you give yourself credit for.