Normally I would be right there with you - but in this case it was a troll who was asked to anonymize his clearly defamatory attacks, and predictably he blew up over it.
DO is a private provider, not government affiliated, so 1st amendment doesn't apply and they are protected under ยง230, but still they have a TOS that prevents it from becoming a safe haven for cyber bullies like this troll. TBH I'm okay with this, especially since the troll agreed to the TOS to begin with.
There may be small risk of this scenario happening, but if you are comparing to another host that doesn't make service contingent upon policing of content you host, then any risk is infinitely larger than necessary. In general, minimizing the ways my business could be wiped out by some service provider helps me sleep better at night. If a user uses a service I provide to host something defamatory, I want there to be a court order before the web host goes flipping power switches on my racks, as it's likely I'll have been contacted by someone before it gets to that point.