I finally did it, and Wow… About all I can say is “Wow”.
I did the equivalent of a format/re-install on Flush Twice today. I backed up everything, wiped the site, installed a fresh copy of WordPress, and imported all of the posts, pages, media, and settings back like it was. Well, almost. The directory structure for the media files is more streamlined.
I learned a lot, and feel more confident about the site’s backup and restore-ability. I can also tell you that this site is absolutely clean.
In case you weren’t aware, the back-end of the site had become rather corrupt. There were a lot of glitches and sometimes crashes. In some ways I feel I have to give WordPress fair credit. Flush Twice had been running off the initial install back in 2009. (It was briefly running under Movable Type from around October of 2008, and blogger before that.) When I think back five years ago, and all the experimenting with themes and plugins, it’s a wonder the site made it this far.
But everything is back in place, and it looks like it’s all running quite smoothly. I even managed to preserve all of the star rating data.