Earlier quoted context omitted.
I've found trees encourage forked conversations in a good way. While I don't find them hard to follow, I do find revisiting them to be a bit difficult. While it can seem difficult to follow the overarching topic given a set of trees, it's near impossible to have any in-depth discussions about more than one thing in flat threads. I have given these models lots of thought and have come to the conclusion that the succes…
Here's a concrete example where I think it goes wrong. You say something, and two people respond. There's one thing to say in response to both people - maybe they both misunderstood part of your point. Which comment do you respond to? On places like HN people seem to feel the need to respond to both branches, which causes exponential growth if it continues, compared to if you could respond to the two comments as one.…
Internet messages (Usenet, email) already work that way. If you want to reply to multiple messages, this is easily possible.
Most users are not familiar with it because the widely implemented threading algorithm prunes the graph into a tree for display purposes. https://ddg.gg/?q=jwz+email+threading