I hope more broadcasters will follow the BBC’s example and start running their own Mastodon servers.

It would be nice if the BBC instance had more accounts, like for breaking news, though. I know they’re just testing the waters, but they need to try having accounts posting things folks are the most interested in.

Was a interesting reaction from some in the fediverse stating they would block the BBC instance etc. In reality how welcome are entity’s that are seen as corporate?

Iirc, the big instance declaring immediately that it would defederate with them was one that’s very well known for being strict with moderation and had firm rules about anti-trans instances. Because the BBC has a history of being anti-trans, they defederated.

That’s a total misunderstanding of what the BBC is. As a public broadcaster representing the whole of the UK, it has a duty to represent all views. While I personally disagree with them, gender critical or TERF views are extant in the UK at present and the public conversation on where this will all land legally is still ongoing, therefore they have an obligation to hear from all sides, no matter how unpalatable one of them may be to some.