I like sharing my thoughts and struggles here, but I don’t want it to be a permanent digital footprint and wish to delete all the posts and comments one day.
I like sharing my thoughts and struggles here, but I don’t want it to be a permanent digital footprint and wish to delete all the posts and comments one day.
No.
As redwizard said, you can edit all your posts and request a purge, but that doesn’t mean that the administrators of instances federated with yours will actually do so.
It’s also trivial to have a private fork whose purge process is “log that a purge was requested for the following db items”.
Federation means you can never vanish. Even if it did, people screenshot stuff now more than ever.