It just looks like the stats are not updating, or something is "stuck" on the share processing side of things. It will probably come right soon after the admin notices.
Any idea when H2O usually wakes up/checks in so he can fix things? Is there anyone else involved who can do so or is it a 1-man show?
I was hashing on MC overnight, but switched to CM because mediocre results are better than flying blind and then "oh, we mined a bad fork for a couple hours" or some other flop. MC has gone from leading CM and Wafflepool to beating them occasionally but doing terrible the rest of the time. I'm not going to guess which it is, if he's not paying attention then that means the pool is running on auto-pilot, and will thus be beaten by a more actively managed pool.