There are a lot of public institutions not using Twitter for their communications too. Are those institutions not in the “town square”?
Where do they communicate then? How do they reach citizens?
I am genuinely asking, because there are not many ethical ways to communicate, some have mastodon, some have newsletters, but it's a fraction of them and they reach a fraction of the people they reach on Twitter.
Think about your local politician, your local sport club... How do you actually reach people of your town?
Press releases, blogs, podcasts/radio, contacting press outlets, etc. Twitter didn't invent reporting the news, and not everyone gets their news from Twitter. Sorry to break it to you!
And they should be utterly ashamed of it. They give it a legitimacy that it has not deserved for years now.
Completely agree, feel the same about facebook et al too.