Pretty much anything bad you can think of @jeffreythe00 has done. Really I just like to rip on Jeff. He doesn't change any of the configurations or code so usually he's not really breaking anything. He's the perfect sponge for blaming any and everything that does muff up in the server though. The best part is that he doesn't really care to take the blame because he has been diagnosed with third degree Flood syndrome.
If by fixing you mean queuing a map restart to temporarily rid it of the water level bug. We're only ripping on him though.