I've been involved in take down and cleanups and whatnot for longer than I care to remember now, and along the way, there's always been one constant - the refusal of some hosts/ASNs/registrars, to do their job (i.e. enforce their AUP/ToS) and take action against abuse (and in most cases, to bother replying at all). eNom for example, who for years blatantly ignored abuse and were found to be involved in a bit of it themselves, only taking action when HostExploit publicized it, now seem to have retreated back to silence, as abuse reports are once again, going unanswered and unactioned.
The most recent refusal came from NameCheap, who when informed of abuse via their customers, decided once again not to take action, but instead simply point the finger to everyone else.
There are however, some that do take these issues seriously, and it is these that I am going to focus on here.
http://hphosts.blogspot.com/2010/12/tak ... -rest.html