I disagree, there hasn't been a block miscalculation since the one everybody went berserk about exactly one week ago.
block=start_time,duration,reward,hashes,luck,difficulty,confirmations
235160=2013-05-08 15:13:44,1:27:14,0.00000096,9167,1.34,10076292,100
Since then people have been reporting the slightest variations as problems - when it's perfectly normal to have some variation - based on your own luck and the pool's luck as a whole.
Where people are reporting zero payouts, they are showing that they have submitted no shares - meaning connectivity issue - not block calculation issues.
I think Slush is monitoring from afar (I don't blame him for not coming on here with all the bitching going on) and long may it continue. Connectivity issues should be kept separate from the block miscalculation issues (which seem to have disappeared as I say).