A question about map restrictions

[#M|A#Wolf]

I remember dust was overplayed and there were a couple of servers running it 24/7 but unless I'm wrong, I think the major reason dust was removed was because it was based from CS. The servers that host the maps these days like sniper@camper, dash@camper, etc., don't host the same map 24/7, it's like a weird maprot filled with different maps but all of them with the idea of @camper maps; though I don't know why those servers haven't been removed since supposedly server owners are supposed to have a minimum amount of official maps in their maprots.