To those deactivating your bird accounts, here are two posts detailing how to do that so as to protect your data and privacy:
1.Basic:
https://counter.social/@TheAbbotTrithemius/109289053844755178
2.Advanced (by @voltronic):
@Bubblehead
Yes - Wayback Machine and other tools can get a lot of things you have deleted, and I suppose that's also true for banned users.
My question is if anything is done differently as far as data retention on the servers for banned users.