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

Just found this treeboard which predates ayashii and other jap bb's

http://www.scriptarchive.com/demos/wwwboard/wwwboard.html

>>57
He finally activated it. But he needs a domain name. I really do not like going to heliohost websights.

>>53
Sorry to ignore it, I think it's a pretty unique idea of storing trees, although I don't understand how the ID is generated. I believe ayashii just has a single "parent" variable and sorts replies by parents.