When groups that formed around hashtags on twitter moved to mastodon, they did so as a group. What was #footwitter is now local on foostodon.social. For examp

When groups that formed around hashtags on twitter moved to mastodon, they did so as a group. What was #footwitter is now local on foostodon.social. For example "energy twitter" (where people discuss power grids) https://twitter.com/hashtag/energytwitter https://twitter.com/hashtag/energytwitter has had a partial migration to https://mastodon.energy/public/local https://mastodon.energy/public/local When people migrated off of Twitter, and mastodon.social wasn't accepting new registrations, and "taking over" a random one was seen as impolite, someone stood up an instance and said "hey, we're over here" and local will be encouraged to have mostly energy related information. If you were following two different hashtags on twitter, and they're now two different mastodon instances, to have a similar experience you need to be able to follow local on each and push content to either such that it shows up in local on the proper one. With the way that mastodon is organized, that's not an option and the way to get to that similar experience is to have an account in each. Would Lemmy or kbin have been a better choice for such? Maybe. However, for a twitter like experience, they aren't a proper substitute.