>>2
https://www.google.com/search?q=shiichan

You weren't around for world4ch (dis.4chan.org) were you eh? I'm not sure about the Shiichan vs Kareha timeline, but Kareha is a much much better implementation of the same concept. I want to say that dis.tinychan.org may be closer to dis.4chan.org -- it has a paginated thread list -- but it has nice features that neither kareha nor shiichan has, like backlinking and an API.