I totally agree -- blogging with trackback/pingback and well-tended comment sections were wonderful!
One of the reasons I started blogging more at Medium a year ago is that I missed having deeper conversations of the sort I had in the comments on my blog back in the 2000s and early 2010s. Plus, I liked the feeling of thinking out loud, and thinking out loud along with the folks who were also blogging and commenting ...
It does take work, though; more work that tweeting/tooting; and it's probably not for everyone ...