One minor change I might suggest is in the voting queue, disable only the voting dropdown menu instead of the entire comment line for one's own problems. What I mean is, when my problems are in the queue, and I want to make a comment, there is a message stating "You submitted this problem, and cannot vote for it." I then have to go to my list of submitted problems and find the one in question (as they are still not quite sorted properly) in order to comment from there. The sorting problem has been mentioned before, but I see no reason why we shouldn't be able to comment on our own problems without voting (perhaps even leave the menu, but with 'Note' as the only option).