I noticed that there were some accounts that were hijacked by the instance owners. All the posts from that user were then edited to say what happened.
This kind of surprised me, I figured instances could delete posts, but not edit them. So how much control do they have?
I assume they can’t see my password (hopefully). Can they post in my name? Do they have all the access to my posts to foreign instances that they do over local posts?
Edit: thanks for all the responses everyone! I’ve wanted my own instance for a while, but maybe I’ll get on it now
They have full control over the account. Since they control the server, they can modify the database to do whatever they want.
Yup, simple as changing the password hash to their own and then logging in with their known password.
Or even simpler, just edit it directly in the database.