https://www.reddit.com/r/speedrun/comments/2zv1p6/just_thought_of_the_craziest_mario_challenge_and/
Basically the premise is to have a group of people complete as many Mario games as possible in the time limit.
Hai I'm the guy who responded a lot on reddit. I might do a similar thing, restricting it to only the Super Mario series specifically instead of any Mario game. And I'd do all of them, and allow sleep breaks. So basically not the same thing at all. If you want to form a group of people I'd be happy to do it, although I don't know if I can dedicate 72 hours to it.
You can now submit runs to the 602 and 1862 leaderboards under the TA filter if you took breaks for sleep and paused the timer! Rules will be more in depth on the category pages on the leaderboard.