Nearly lost the whole Wave site…

I was following instructions for a security upgrade, and got to the point I thought I should push the 'do-it' button. I nearly wiped my whole identity, which would have taken the page with it. I made a belated move to stop it, but in the process, I lost a bunch of sub-pages, just lost, gone, with all attached comments!  I am so sorry!

I have reconstituted the generic book discussion page, and trust you guys to fill it with brilliant threads. I will reconstitute others as I think of them, or...