Strong yes
Qualified yes
Qualified no
Strong no
Poll ended at .
Qualified yes. I think that original posters being able to remove and otherwise moderate replies is a desirable feature, but that doesn't necessarily mean that every single platform should provide it.
The cultures of Twitter and Mastodon have evolved under a shared understanding that you own your posts whether they are replies or stand-alones, and people have learned to make use of this fact. Suddenly changing the functionality of Mastodon would inevitably cause some distress.
Personally, I'd be pretty unhappy if posts I had *previously* made as replies could suddenly be deleted at the whim of the originator of the thread.