Well, I'm baffled then. From where I'm sitting that point 8 is clearly talking about what happens after a bug is discovered, and not about discovering bugs.

The longer paragraph doesn't seem to contradict the notion either. My impression (based on the "How Many Eyeballs Tame Complexity" chapter) is that Raymond thought that "debugging" means "fixing bugs".

If I were criticising this part of essay, I'd say the main weakness is that the things Raymond thought of as "taming complexity" weren't really addressing the hard problem of reducing the number of bugs.