One amazing use of the twitter API is to be able to mass delete your favs, rts, and tweets. It's the only thing I use it for as the API and platform as a whole is otherwise hostile.
Could you make a tool to find out how many tweets someone has deleted?
Those are not technical terms, sorry, but this is how I currently understand it so it might help you too?
I had to use the archive initially to delete most of the old stuff but now I never have more than a few tweets to delete.
https://tom.eastman.nz/2020/06/what-it-took-to-delete-my-lik...