It doesn't show live profile pages to logged out users since a while ago. You get cached summary pages, an age gate error, or sometimes a straight up 404.

Most individual permalinks (.com/username/1234...) don't work without logging in, either, and the official client now uses `/i/` in place of usernames for permalinks(bogus usernames always worked; pkey was the timestamp).

This means an organizationally shared Twitter account for announcements is not a viable concept, at least until Twitter is to be transferred again to whoever would be a better keeper of it.