I actually don't post my stuff at Insane Journal. Maybe I should start. I just came over her and saved my screen name when there was all that hooplah with LiveJournal awhile back. I do watch a few artists and communities that moved over here at that time, though. So no doubt you'll see comments from me again.
I like uplifting comments. You're right, they really have the tendency to lift you up when you feel down. I've had to develop a rather thick skin as a fanfiction writer, as everyone seems to have very strong opinions where that is concerned, but those really nice comments just make it all worth it! :-)