This space does not have one provider. It was designed for many to participate: observablehq.com/@neocartocnrs
I moved from an instance with issues. You should too.
What is a good size? You may reverse the question: a good council takes decisions to scale or to limit growth.
I invite you to try another account and pick an instance of reasonable size: mastodon.help/instances/en?lan
Then post an with : mstdn.social/@breton/109372054

a map Mastodon servers as of 14 Nov 2022 from https://observablehq.com/@neocartocnrs/mastodon
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If you have a fediverse account, you can quote this note from your own instance. Search https://social.coop/users/eric/statuses/109389235491506293 on your instance and quote it. (Note that quoting is not supported in Mastodon.)