This is getting out of hand.
If a member hasn't posted/replied/commented/voted in the past two or three month, remove them from the rolls.
If they surface and say, "hey, what's the deal" then add them back.
If you want to try to contact them before removing them, fine.
I understand you are trying to be transparent here, but I'm not sure giving everyone a vote is appropriate in this instance.
I don't understand how clearing out inactive members would hurt active members.
This is not to criticize your process @silverstackeruk, I'm giving my thoughts.