Domains by proxy is a Godaddy company, so they probably dropped the registration just before Godaddy dropped the domain.
They’ve moved the site to Google Domains and going through a new anonymous domain registrator, but Google insiders already said that they were also revoking the registration. It’s good to see tech companies finally standing up against hate speech, not just mentioning it in their terms of service. Now if only Twitter would act on all those tweets I reported…