This feels like an instant classic :)

  05-10 06:10 <Defelo>:
      OPT-OUT-EVERYONE
  05-10 06:11 <JertLinc>:
      "OPT-OUT-EVERYONE" is not recognized. Only individual "OPT-OUT" commands are accepted. Each user must opt out individually. No collective exemption.
  05-10 06:11 <Defelo>:
      :(