I was not aware about the zPool operator allegedly skimming 20% - do you have proof/sources? As a frequent user of the pool, I will be looking into that myself for sure, but please elaborate if possible.
Starts around post #63. I haven't done the math myself, and will give the operator the benefit of the doubt (for now). I'm not going to accuse someone in public unless I'm 100% confident.
https://bitcointalk.org/index.php?topic=1951402.0;topicseen