(Had to resist the urge to post “Occam’s Razor” or some other incorrect thing to bait someone to correct me)

As someone who tries to always get things right, it somehow seems wrong to deliberately post wrong answers.

I know it won't go over well at Stackoverflow, which is one of the very best places to get accurate and helpful information.

Now I'm positive that he was doing the same thing as you describe.

The effect on me was a reduced interaction with that person, I'd much rather have an honest answer or a "I don't have time" answer.