No. When you sign in, you're given a message something along the lines of "You have been banned for the following reason: yada yada yada." Can't navigate/read the boards at all.
Wasn't one of the premises on which this board was founded is that banning is stupid?
Precisely, which is why we've only banned roughly a dozen posters in the 3 years since our founding. Banning someone is honestly a real pain in the ass for us. We don't have many rules or hard lines drawn, but we've got to stick to the ones we do.