As a for-profit business? No, I do not think they should unban people who threaten to rape and kill people (for any reason). They have a duty to their investors

As a for-profit business? No, I do not think they should unban people who threaten to rape and kill people (for any reason). They have a duty to their investors to create a company that is profitable, and those actions rarely result in a profitable enterprise. As a nonprofit organization? Yes, absolutely they should. They should allow users to form groups and better curate their own feed, assisted by algorithms, and essentially let the people who want to say terrible things say terrible things and let the people who don't want to read it block them. This is essentially the same fight about what "The Internet" should be that has been going on since the Usenet heyday. We do have to realize now, though, that there are no benevolent corporations who want what is best for the Internet. We have to advocate for that ourselves.