One of the things that makes no-ads, no-profit-motive social media possible is *acknowledging* that creating a social space is demanding and expensive - that some communities might dissolve - and planning ahead of time for that.
I've been on a number of message boards and moderated newsgroups. Nothing lasts forever. The important thing isn't a forever service; it's a combination of preserving what's there (which Cohost is doing) and providing people a way to exit gracefully.
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