"Will" just deleted this question about developer tools and as such falls into the accepted areas for questions on SO. The question was there since 2009 and has helped a few people since. I find it rather hypocritical when the guy who earned 202 upvotes with this answer, deletes the question in question but not the question he got his 202 upvotes with, which is exactly from the same toolchain category.
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The question was probably flagged, Will♦ responded, and just deleted it. It's a totally "not constructive" question by modern standards, and only had net 11 upvotes and 370 views throughout the entire thread. The deletion was valid, although it was useful to some people.
You mention "hypocritical behaviour", but the other post you mentioned has a historical lock. It's a little older, a little more viewed (227969 views), and just happened to get "gradfathered in" as a popular question. I don't believe even a moderator can delete it.