Per its revision history, the guide was first published on 1/1/14. This current revision is only a few months old, and besides articles on important C programming techniques by the big toads like Raymond are more or less evergreen content.
The content of the article is more or less evergreen. Raymond's celebrity in a constellation of small worlds [deserved or not] makes it more likely to get treated so.
The joke is funny. If Knuth and Ritchie we're the domain for panels one and two though, panel three would get a much larger range. John Skeet, even maybe?
If you have the time, watch this series in which John Romero and (Bioshock level designer and apparent Doom fanboy) Jean-Paul LeBreton play through the first episode of Doom and analyze its level design in depth:
In American conversational English "this was discussed like a year ago" carries the connotation that another discussion is redundant. It reads in the voice of a teenager's critique.