npub1c0…l8dwg on Nostr: Do the public agencies posting updates on #twitter even know that non-members can't ...

Do the public agencies posting updates on #twitter even know that non-members can't see them any more? Or do they just not care?

I've just received an email from #Sheffield council with #flooding information, and most of it is links to twitter feeds with the last visible posts several months ago. Presumably if I signed up to Nazi Mastodon I'd be able to see this important info