@mdione I have no idea, not much of a social media person. Anecdotally, it seems that "going viral" no longer happens much unless it is a celebrity doing it, so maybe not much point in coordination.
With that said, Mastodon has over 15 million accounts, but of course spilling over to other social media helps.
@alberto_cottica I have seen messages about this for months already, and there doesn't seem to have changed much since, it's still my impression that we reached peak spread here, at least for EU people.