OK, let’s check the status of that today:

• Point 1 has already been fixed after our insistence, messages will be available for undelete to admins for 30 days then get scrubbed
• Point 2 is true but frankly I don’t see the issue, you’ll see that a person wrote a message they deleted, no exploitable information has been leaked, and if the account is ever deleted even that gets deleted too
• Point 3 is outright false, the moment something is deleted, ActivityPub spreads a delete command to anything federating it
• Point 4 is also false, you can check the source to confirm it, i did

As an aside, the politics of the Lemmy creators are still mentioned a lot, but at this point the tankie population has been pretty much utterly outnumbered due to the Reddit migration, Lemmy has grown from a few hundred people to thousands and is STILL growing, hopefully it’s no longer an issue.