The author of the linked post claims fairly strenuously that they always search for answers elsewhere before posting, which (taken at face value) suggests that

The author of the linked post claims fairly strenuously that they always search for answers elsewhere before posting, which (taken at face value) suggests that they are not at all suffering from this "common misunderstanding". If you want to refute their point then you really have to make the case that SO is functioning as intended despite their implicit claim to the contrary. I personally have no trouble believing that it isn't functioning as intended, but I haven't participated in asking or answering for a decade-ish so I don't really know.