In the TS6 server I checked and verified, there’s a bug in the Poke power where it allows “Guests” by default to poke anyone in the server including Server admins, the setting by default is set as "Needed client poke power ‘75’ ", which should prevent Guest from poking even admins, but in reality they can poke anyone even admins who goes with 75 power.
I even tried to set Guests having 0 or 1 poke power, but still the needed permission is completly ignored by it… And then it should be a bug because “Needed kick, ban, and even move” are set to 25 only and those permissions are working as it should, so I guess It’s really a bug.