Those comments are removed manually (and the notice posted) when I see the problem taking shape. Typically, well-established sites are able take care of these activities through vigilant community self-moderation. But the Community Team is still considering candidates for your provisional Moderators.
The bigger problem is that, often, it's not actually the ...
Just to clarify under which circumstances a room is frozen. A room is frozen after 14 days without any activity. (A room can be deleted already after 7 days if there is almost no activity in there, but this is not the case for the type of room you are asking about - basically the "main"1 chatroom for the site.)
The system always keeps at least one room ...
Advantage: Everybody talks politics in taverns, clear back to when Lugal-Zage-Si and his cousin Is-Agez-Lagul put their heads together over a glass of 𒀁𒀑𒀑𒈰 and plotted to overthrow King Ur-Zababa.
Disadvantage: Everybody talks politics in taverns after imbibing alcoholic beverages.