I don't see any proof that the account was hacked, only an allegation.  I spent a little time scrolling through the post history, didn't see a gap in shitposts, just an incessant stream.  Nor did I find an address posted or any way to prove ownership.

The accuser seems to have created the account nixon98 just to levy the accusation.  I see the posted quote of the PM, but those can easily be forged.  I don't know that there's enough evidence that would convince me to paint nixon99 red.