It is censorship - but it isn't Hive, and it isn't an account being censored on Hive. It's accounts being censored on deathwing's api node that he offers to the public for free
If witnesses were modifying hived to censor accounts, I would join your chorus, but that isn't anything like what is happening here
Hive is far more censorship resistant than any public api node
Any given public api node may be more or less censorship resistant than deathwing's public api node
This is where we fundamentally disagree, I think - I want Hive to be decentralized. The services that run on Hive are then free to do as they please. Say I want to send someone 5 HIVE - that is my decision to make. 100% centralized on me. Perfectly ok for that to be centralized. If I want to build a browser extension that reads a list of users from a post and hides any posts from that user on ecency.com, that is censorship and very centralized. Also totally fine. Why should someone have the authority to tell me I am not allowed to do that? Why should someone be allowed to tell me I am not allowed to offer that to my friends? Decentralization is that freedom. Take away that freedom, and you take away decentralization
So of course people are free to offered censorship heavy dapps, api nodes, front-ends, browser extensions, or anything else that run on Hive. Hive is decentralized and strongly censorship resistant. They can run those services for the same reason that others can run services that avoid censorship