I've often pondered what I would do as my last Tweet. For a long time I thought it would be.

"So long and thanks for all the Tweets.”

More recently I've come to like.

"Don't cry from me ArgenTwitter."

At this point I'm not doing a last Tweet. When it happens, it'll be simple account deletion, no notes. The only winning move is not to play.
@paul I gutted both of my accounts of all content, DMs, and followers/following using Semiphemeral.
Both have kept their Bird handles to prevent impersonation, and have been renamed to my Mastodon addresses with a Mastodon icon for the profile pic.
Both are in cold lockdown as dead, empty birds.
I don't visit or click on Birdsite.
Period.