I checked to see if the author of GNU grep left a comment, and was not disappointed: "I’m here with Mike Haertel, GNU grep author and the author of the perform

I checked to see if the author of GNU grep left a comment, and was not disappointed: "I’m here with Mike Haertel, GNU grep author and the author of the performance hack that bedeviled you so. He Googled your article somehow a while ago and was highly amused. [...]"