The Greasemonkey script
I was using for tagging on my tagathon
irritated me and I fixed it. Specifically, if I changed my mind about a tag, I'd have to delete the inserted tag html and re-append the new tags. Turns out it was supposed to be able to replace the tag html but a bug was causing that feature to break. I'm also too lazy to add the new lines before the tag section so I fixed that too. In an ideal world I'd have enough energy to make that customizable, I suppose.
Anyway. Here's the fixed script