I'm seeing a strange thing in my WMT: as soon as zombies appeared ( Thu Aug 2nd) , WMT traffic chart (Search Queries) stopped updating. It's frozen on Aug 1st. For me, anyway. It used to update only two days behind, it's now 5. Anyone else is seeing this?
I was going to check if Google's own CTR also reflects the low conversion quality of the zombie traffic but it does not show the right dates - I keep coming back and it's not updating.
In addition, I'm seeing one site in my account that looks like zombies have started a couple of days earlier: on July 29th the Search Queries chart went up (considerably) and at the same time the clicks went down, and it still stays like that. In other words, looks like the zombies phenomenon is bad for Google as well as webmasters: it would not make much sense for them to show links with significantly lower CTR in their SERPs. Sounds like a waste of valuable screen space.