Sounds like you have an axe to grind. Maybe it's best to address this issue directly rather than making passive-aggressive public posts in hopes that whoever you're upset with will read them, or random strangers will agree with you.

Indeed, you can tell more about the poster than about the demographic they would like to be referring to. "Does not follow" arguments are often like that. Still full of data, just not on the subject as much as on the speaker.

High profile April Fools hoaxes can serve as a massive boost to brand awareness and could be seen as a large scale marketing campaign.

That's my impression anyway, I've never worked anywhere that has done one.

or he might promote the guy to Chief Jesting Officer and put him in charge of company culture. He'd have my vote!

Judging by some of blizzard's april fool's they put some of their prime talent there. Depends on the company I suppose.