Some are useful. It's not uncommon for scammers to throw up copies of legitimate sites, but hosting malware etc. Having tried to deal with Google, GoDaddy-et-al I can attest that their fucks given about such things is minimal but one of these companies can get offending sites taken down pretty quick.

The problem is when they don't do due-diligence (and don't face reasonable consequences for failing in said diligence) and then shit like this happens