Keep in mind that this project is A) in its infancy and B) just a hobby project.
Because the Internet Archive's Live Music Archive doesn't have the visibility it should (I keep bumping into people who have no idea it exists). Also, my interactions with it normally went like this:
I'm starting to test adding in sources other than the LMA. Eventually you'll be able to suggest other sources as well. There are plent of bands with bootlegs online that are not in the LMA.
Bummer. I get the data from the archive by doing a daily screen-scrape. The show counts are accurate in so much as that's what the artist index says when the scrape is done. That page can be wrong, or maybe a show has been added/removed since it was scraped.
That being said, if you find something consistently wrong or if your artists are matching incorrectly, you can let me know by emailing me. I can't promise I'll fix it quickly, but I'll appreciate it and keep it in mind as I make improvements. email jeff [at] semanticart.com
This is a simple ruby app powered by sinatra talking to the undead music api. You can browse the source of the project on github.