I was asking @Tomigon
about this, and I came up with a solution!
To search up Disqus comments on a given card, copy/paste this link in your browser:https://disqus.com/home/discussion/mtgcardsmith/
Replace [CARDNAME] with the name of the card you're interested in, use underscores for spaces.
Replace [USERNAME] with the name of the card creator.Et Voilà!