Pool Ops that offer PPS to their members and hop with their hash power should be exposed.
Exposed for being savvy businessmen. The miners are getting exactly what they deserve. What's the problem?
1) They're actively hurting users of other pools. Not every pool can handle swings of hundreds of GH/s, especially the smaller pools that still use hoppable methods. It increases stale rates and the frequency of miners idling. The pool ops can't afford to upgrade to stronger servers just to service a proxy-pool that only shows up for a small time frame.
2) They're not being transparent, and it can be far more dangerous than the FUD that gets spread about Deepbit. They should at least have on their site available for all to see what pools they hop, and what pool(s) they are currently hashing on.