@Gargron Please don't consider it. As you said in 2018, the system as it is encourages interaction. I can boost the toot I reply to if I want to drive further conversation under the original toot. My toot still appears to those who follow me and replies can be added to that. I don't see a problem with this or a need to add something that (in my mind) implies a popularity contest and removes the OP from the discussion.
Imagine "quote tooting" against your post instead of all this feedback