I like the design, all the way down to Copy Past Z. I think grandparent post is out of touch with your target demographic :D
I cannot think of a target demographic who would use the site in its current incarnation but would not if it were a cleaner, simpler, "less /b/-inspired" design. I can however think of a demographic who wouldn't use the site unless it were cleaner.
edit: This sounds like A/B testing 101 to me.