I'd have to agree with the above posts. I won't say that I'm not guilty of the exact same thing that is a peeve of mine, but I'll hop back into action if someone yells at me like Inkarnate. That aside, though, lack of communication has killed entire roleplays that I've GM'd. Last year I had two RPs end because of people vanishing. One RP died at page 1 after the entire group just vanished out of thin air at the same time and wouldn't post anymore, and when I was hunting down people for posts or if they were still around for the other RP, I got "no thanks", "I didn't know the RP was still going on", etc. and similar responses.