This is less a question of behavior or functionality (“here’s how i use quote posts”) and entirely about semantics (“the nature of the relationship between my post and the quoted post is…”)

To use replies as an example: the functionality of replies is that you want to link your post to on or more posts in a series. But the semantics of replies is that you are specifically responding to the thing you are linking; the “link relationship” between “your post” and “their post” is “reply/response to”