You lying to yourself or have unfounded expectations. Everything on Mastodon is in plain text, there is no encryption, and servers get mirrored. It's only the login info that stays with the instance, and they all say that each instance server keeps logs for a year.
It has never been any priacy at all. The entire point of why Mastodon was ever started was censor evertbody that has the wrong opinion. Twitter wouldn't delete people because of what they believe, so Mastodon was developed to ban IP address so only approved speech could exist on the internet as far as they are concerned and can avoid ackniwledging the real world. A high number of people on there, especially the admins, live in cult