I have been working hard on my Jekyll blog (this thingy) and finally got to a point where I wanted to migrate my Disqus comments from my old WordPress blog to this one.
I started by trying to use Disqus' URL Mapper migration tool, but it turned out that you couldn’t migrate comments between sites with different short codes. I guess I set up my stuff wrong, or not the way Disqus suggests. Oh well.
So here's what I did, and it was a time consuming task.
After you do this, you should see the comments on your Disqus dashboard. Be sure to check the URLs to make sure they match the correct post they should be attached to.
To test this, I created a testing site on Disqus and imported the comments there to make sure everything was correct before actually importing them to my actual blog.