In November I got disgusted enough to leave twitter, not just pull the plug, tear it out of the wall. To be clear -- very small twitter account, under 1K followers.
I just set up a new Masto account on a larger server, started watching, following, engaging.
A small case in point: Rands In Repose blog's accounts on both platforms. 42K followers on Twitter and 7.7K followers on Mastodon. Despite Twitter having 5.45 times as many followers, Michael Lopp reports significantly higher engagement on Mastodon. Just had this conversation with him.