[citizenkeith]

I will look into this and report back later, but…

As reported in this thread:

https://bbpress.org/forums/topic/recount-errors

I was using BOTH Simple Onelinelist and ck’s Members Online. Why, you ask? Well, because I was too lazy to edit one of the templates we use (Theme Switcher is installed). Not only is S.O. out of date, but I’m sure there was a conflict.

Once I deleted S.O., all my problems went away. Recount errors, database upgrade messages and corrupted tables. Some plugins that didn’t work properly in 1.0 (Admin Add User & Approve User Registration, specifically) started working. Perhaps this was the problem all along?

When I have a chance this weekend, I will investigate error logs and whatnot. For now, none of my previous problems can be reproduced.