An arbcom case arose around a 2016 April Fool's Day piece in The Signpost, objections to it, and reactions to those objections: Wikipedia:Arbitration/Requests/Case/Gamaliel and others.

• Racism
• Deletion was nominated for deletion per WP:RECURSION.
• Jimmy Wales was nominated for deletion on the grounds of impersonating Jimbo.
• Donald Trump was nominated for deletion because Bernie Sanders is better... Like, waaaaaaay better
  • Bernie Sanders was "nominated" for deletion because Donald Trump is going to be the best president ever! Unfortunately, no one knows where the nomination went.
  • In other news, Donald Trump's presidential campaign was nominated for deletion for being a complete hoax
• AOL is nominated for deletion for being 2 old.
• Delta Air Lines was nominated for deletion because of disliking circles.
• iPhone SE was nominated for deletion since it looks like the iPhone 3.
• Tadalafil was nominated for deletion because of the pain.
• Windows 8 was nominated for deletion per WP:IDONTLIKEIT.
  • Although the last three nominations have occurred, this is the first nomination to be an April Fools' prank.
• Yandere Simulator was nominated for deletion. On her birthday!
• Twitch.tv was nominated for deletion since Kappa.
• Virgin America was nominated for deletion as the logo looked like boobs.
• HTTP 404 was nominated for deletion 404 RATIONALE NOT FOUND
• Undertale was nominated for deletion on the command of Chara.
• Russia was nominated for deletion because it is too early to give up on communism.
  • The report is ran over by a train after the phrase "I like trains" is muttered.
• Wikipedia got nominated for deletion for the eighth time.
  • Which is then nominated for deletion because it isn't an April Fools' day gag without a recursive xfd.
    • Which is in turn nominated for deletion for not meeting notability requirements.
      • Which is then flipped upside-down like a table.
• Earth was speedied for being a hoax. Again.
• User:TenPoundHammer was speedied for being a nonexistent user.
  • The page is then nominated for deletion, like your common article.
• The United States was nominated for deletion on the grounds that it is a hoax.
• The Rules for Fools page was nominated for deletion for the second time on the grounds that Wikipedia is not a manual of what policies to follow.
• Vandalism on Wikipedia was nominated for deletion on the grounds that everyone can agree that vandalism has no place on Wikipedia.
• This page was flipped upside-down, since it seems that's all NewWikiProfile001 knows how to do.
  • Spirit of Eagle then proceeds to instead of reverting, meaning the page has been flipped 360 degrees.
    • Which is then rotated another 360 degrees, making the page rather dizzy.
      • Spirit of Eagle gets so dizzy that he accidently warns himself for edits made to this page.
• Wikipedia:Mouse! was nominated for deletion because, to quote Noyster, "The excellence of this feature is so blatantly obvious that there is no need whatever for an RfC".
• WrestleMania 32 was nominated for deletion due to AT&T Stadium being closed all weekend, but also due to the fact that fans don't want Roman Reigns as WWE World Heavyweight champion.
• Dihydrogen monoxide hoax nominated for deletion because dihydrogen monoxide is a real issue.
• Shanghai Metro was nominated for deletion since it is too crowded.
• Elizabeth II was nominated for deletion as nobody has heard of this person.
• History was nominated for deletion so we can get a fresh start.
• Ecce Homo (Elías García Martínez) was nominated for deletion because it is better whited out.
• Darth Vader was nominated for deletion for misusing the dark side of the force.
• Lascaux was nominated for deletion because it's still too early.
• Frozen (2013 film) was nominated for deletion as nothing could be found through all that ice.
• History of the world was nominated for deletion because it is not notable.
• Microsoft Windows was nominated for deletion (twice) because of a statement from the FSF saying that it's evil.
• God was nominated for deletion for impersonating Morgan Freeman.
• John Kasich was nominated for deletion for not really being a presidential candidate.
• Wikipedia:List of hoaxes on Wikipedia was again nominated for deletion on the grounds that it is an "egregious hoax."
• Bimbo Wales was nominated for deletion because of "taco".

• User:Peter SamFan's user page was blanked due to an unrecoverable system error. See link. [1]
• You are blocked (fake) User talk:Titodutta#You are blocked
• Jimbo's user page is redirected and then goofed up again. (See link.) [2]
• Widr's user page was turned upside down. [3]
• The Voidwalker's user page went splodey.
• In a stunning display of originality, Spirit of Eagle's user page was flipped by 75 degrees.

• An invalid redirect for creation was made and accepted.
  • It wasn't realized however.
• This section was renamed from "General tomfoolery" to "General jerryfoolery" as a Tom and Jerry pun.
  • But like the invalid redirection request, it wasn't realized.
• Template:Humor got an update (but was quickly reverted).

And then was changed again.

• In the pranks by year section of Wikipedia:April Fools, the 2016 link was edited so that it led to the talk page rather than the project page. As a result, this page was created on the talk page and remained there for nearly an hour.
• One grumpy User:David Levy decided to warn User:Clubjustin for playing jokes. A Zilla came to eat the grumpy user up.
• Wikipedia:Copyright problems gets tagged with a copyright violation template because the header for the page directly takes from this webpage.
• Wikipedia:April fools was redirected from Wikipedia:April Fools to Never Gonna Give You Up, resulting in a number of would-be pranksters getting Rickrolled.
• An RFC was started at Wikipedia:Mouse! on some impending software.
• Xkcd got sandy,
• WP:NPA Was redirected to titusfox's userpage. 1
• Tumbleweeds were seen crossing the RFA page
• This page got rickrolled.
• Upside Down (disambiguation) gets turned upside down.
  How meta.

The page then goes right side up again.

• Fundraising announced their plans to supplement banners with VR ads
• Angle is up at an angle.
• Askew is tilted ever-so-slightly.

• Xaosflux made a bot approval request for his fellow bot Fluxbot at Wikipedia:Bots/Requests for approval/Fluxbot 401. "401" should be short for April Fools' Day.

• First Jerryfoolery reference