There is no way to try and alter history on Nostr by deleting a post (or 2) (or all), because you CAN'T in Nostr. This is perfect for timeline and history achival purposes or proof something happened at a certain time or in a sertain sequencial order, even though not always convenient for the publisher. 
A typo will forever be logged.
A lie will forever be a logged. 
A mistake will forever be a logged.
Truth will forever be logged.
Nostr is a better historical archive of whatever is posted versus centralised solutions with options to edit history.

Sort of like:
Nostr is the proof-of-work version of published history
X is the proof-of-stake version of published history