Nice, I don't think I have seen it mentioned. Well, if there's a good time to convince people to use it, it would be now. People hate these companies. In my experience with FOSS alternatives people are only willing to bother to upgrade to a better platform (even if they see it has better features & fewer downsides to make up for the more cloistered network, which can also be a positive, feels like a small private party) if they already have you in their inner ring of correspondence, very frequent, worth developing redundancies for. Most people I discuss art with are at arm's length. I'll try!