Rather than cultivate a friendly and open community, they decided to be hostile and closed. I am not surprised by this at all, but I am surprised with how long the decline has taken. I have a number of bad/silly experiences on stackoverflow that have never been replicated on any other platform.
If the goal of beehaw is that the user base remain ever small, then by all means jump ship and move on, I can respect that and I wish you all the best. However unless your good faith “rockstars” are planning on building you a platform, you will likely find out that the grass is not always greener on the other side, and that migrations bring additional tensions and work.