you can still read old SA/4chan drama on some kareha board's archive
I didn't watch the video because I don't really care, early 4chan was a fun place but there is nothing that makes the actions of individual people involved in early 4chan that special

>I'll start things off by asking about the origin of a board I've seen advertised on here that looks pretty nice
It's a board made by a Heyuri user some years ago, we have a wiki page on them that's yet to be fleshed out
https://wiki.heyuri.net/index.php?title=Hikari3

For general history of imageboards including developments in 90s Japan, read this article: https://wiki.heyuri.net/index.php?title=Imageboard