Quoting Steve Litt (slitt@???):

> So I just remade the directories I deleted ago, chmod 700, owned by
> root.root. Exactly what would I expect to find in them?

I'll bet, if you asked a search engine, you'd hear answers like
https://unix.stackexchange.com/questions/18154/what-is-the-purpose-of-the-lostfound-folder-in-linux-and-unix#18157