April 2016's joke for SE was a game and there was an account with the same name as it.
What was the profile URL of that account?
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The 'person' you play in the game is Jon Skeet. He is well known as the highest reputation user on StackOverflow, with a total rep of > 1 million (official blog post). As such he has become one of the biggest memes on SE, even becoming the Chuck Norris of programming.
See, he was thanked in the credits:
Note that the game is not 'linked' to his account - Jon Skeet gains no rep from Unikong. (It probably wouldn't matter anyway - he hits the daily rep cap constantly without even trying, so this would make no difference.)