[babypuncher]

I think you can mostly solve these problems by changing how the trees are sorted rather than eliminating them entirely.

Here's the usability problem: You're 40 pages deep in a 100 page discussion and you see someone asked a question that you also want to know the answer to. How do you weed through the comments in the remaining 60 pages to find only answers to this question and relevant tangents? I've yet to see a conventional forum come up with a solution that doesn't involve a lot of friction or potential for missed information.

It is far too common for a forum's built in search tool to fail me for some reason or another, leading me to manually scan the entire thread. I may be willing to do that work if the information I am seeking is very important, but will I still feel that way if I just have a hunch that maybe I can provide my own input for someone else?