So, I woke up this morning to cash out my daily Metizer cash out, only to find out they had changed their withdrawal minimum to 0.006 BTC. Previously it was 0.001 BTC, which allowed me the daily withdrawals (at a current rate of 0.0019 BTC per day). I will post an update once I can test if the withdrawals are still working. They haven't updated their FAQ either...
I switched all my available GH/s back onto mining Bitcoin.
If I'm not mistaken, all the withdrawal minimums were increased by x3 or more.