Tree based textboard

What does /prog/ think about boards like treeboard[1] and ayashii world[2]?

[1] http://tree-board.net/
[2] https://sonzaishinaiworld.heliohost.org/bbs/bbs.php?m=tree

There's this old 2003 era script from the same guy that made gazouBBS and other early BBS scripts. It was called TreeBB, and was easily his most ambitious BBS with four different methods of organizing posts, object orientation, and so on. Almost all of its functions are deprecated and it barely works today, it's incredibly easy to break the log and reset the entire board, but I have a mirror of it here: http://secretfamilyguyepisode.com/bbs/