Given enough publicity to get his attention, I think it's highly likely that he'll consider not deleting Twitter accounts that have been owned by (confirmed) deceased users. As far as I know he's taken a good amount of opinions from Twitter users.
For sure he would really be making out exemptions because if he do continue or decided on including Hal Finneys account then it would really be just giving that negative impression and lots of criticism
out from Bitcoin community.He wont really be that dumb on not to know about history which it is really just right that he wont really be including it on the wipe out.
He wont really be that numb for preserving it since it is really been part of history which is something or that really needs to be saved up.
Elon would likely be listening on what has been requested.