I believe he does maintain the pool, but he said recently that his circumstances were not good.

Mix that in with Trezzor project and I think we could have the reason for his absence. His account at this point in time shows he has not logged in since 21st August.

I may have to move pools soon since I am unable to lower my user diff after testing some higher values. Website shows diff 1, proxy shows diff 5  and no reply from Slush