 :::I  don't  know about  that  either. Unless you'd like to  get  an opinion  from  another, very  experienced  admin (DGG, MoonRiddenGirl, Risker, Worm, etc. or perhaps one of the 'crats), I  think  it's best  to  let  sleeping  dogs lie and let  SPI take care of the rest. All  known meats have been blocked, and the community  will  just  have to  be on  it's vigil for any  new accounts which if obvious Ducks can blocked immediately, added to  the community  ban list, and their edits removed. The SPI clerk  declined a CU because the quacking was obvious, but  I  would have thought a search  for sleepers would have been appropriate.   