I was reading a piece by a blogger who was reviewing some material from a particular industry. The author at a few points in the article made the point that the professionals in the topic industry "weren't trying" and were "making a poor effort" in their chosen field. Unfortunately, the author for the piece littered the article with grammatical mistakes (I stopped counting at 30 in a single post).
Seeing as how these types of mistakes could show that the author was "making a poor effort" I was thinking this could be described as an example of irony but the definitions I found from MW would seem to preclude that.
I felt it was important to get the right description since I am making a commentary about the author's lack of attention to basic English grammar. ;)