I use to feel bad for collateral damage to CC's customers. Fact is, I am pretty sure they all have been warned and should have seen 50 different NEGATIVE things about CC by now.
And the head cheese Biloh blames crap on his network on "fact" that there are so many VPS companies under CC and a spammer can be booted out, just to show up at yet another company on the network in 15 seconds.
See all stupidity by design. Cause really, they could institute something with teeth to slap bad customers. They could limit SMTP send rates. They could do many things. But they don't and it's part of the whoa poor us schtick.
If their downstream VPS companies (that they don't have investment or partner gimmick with) are so g*d damn inept, then they deserve to be beaten, slapped, banned, bankrupted.
Include every IP issued to CC and all those which they get from datacenters and bandwidth upstreams.