The showcase on the other hand I thought was more for "I think I'm as finished as I'm going to be. Maybe for now, maybe forever, so here it is!"
Man I'm with ya. I also thought the Showcase was for this purpose. However that rarely seems to be the case which is why I rarely post. Plus when I post a song in the showcase I'm truly done with it. The song has been released so the comments whether good or bad won't change anything because the song is out. I just save the critiques for the next one. I also listen to a lot of the songs but refrain from commenting other than if I like it I make sure to let the artist know. I just listen to the song as a whole and don't go too deep. That's just my method.