Thank you all for sharing your metadata tips! They've been a huge help while I've cleaned up my metadata. I've run into an issue that I haven't been able to solve, and I'm hoping someone can help. I'm using include_metadata_post to limit the freeform tags, and it's eliminating some tags that it's supposed to but allowing others through, and I don't understand why. Here is the relevant bit of my personal.ini:
And here are some of the tags that are still showing up in edited_ao3tags: