Still seeing a lot of people posting from accounts on mastodon.technology.

Your server is about to shut down, please move your accounts to another server as soon as possible.

You can transfer your account to another server, but only while both servers are still operational, so the time to do the transfer is now.

The migration process lets you keep your followers and follows. There's more info on how to do it here:

https://fedi.tips/how-to-use-mastodon-and-the-fediverse-basic-tips/#TransferringYourMastodonAccountToAnotherServer