It never went away.
With the whole twitter debacle I am trying what is suggested here - not the blogging bit, I’m already doing that - but I have been through everyone I follow(ed) and looked for links to websites, blogs and homepages, etc. Sadly, there are surprisingly few. And a couple that had blogs had misconfigured or missing RSS feeds. But for the ones that have them I am going to try to keep up with what they are up to by using RSS rather than jump over to Mastodon.