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Quoted from Spike Himself

[…]

CC’s dont pick up on sounds unless they’re pretty near. For example, on gullywash I could be in spawn on last and hear a medic uber on mid (if nothing else is going on), but the CC won’t pick up on that.

tl;dr cc is rather useless

Are you sure? That’s wayyyyyyyyyyyyyyyyyy outside the area portal for badlands spawn.

Quoted from slate

checking if the server has sv_pure 2 is done in a matter of seconds, never checked myself what it looks like for sv_pure 1, if the allowed stuff gets listed.

This.
It’s my opinion that sv_pure should be kept at 2 unless its for a good, practical reason since as Slate states it is easily checked.