I hate the font choice of this article.
I had the opposite reaction - both the font and the text color detracted enormously from my ability and desire to continue reading the article.
I am thankful that the ability to work around these shortcomings was in your control. (Chuck it through a readability bookmarklet, as an alternative to overriding CSS)
Spare a thought for people where the choice of whether or not to consume a piece of content is taken away from them because they are disabled, and they have no straightforward way of working around the barriers the website has placed before them.
These people don't have the choice you have, unfortunately. I wish they did.