It's pretty simple. One poster posts something after the words "What if" and the next poster says the effect.
Rules: Normal game corner/PB rules apply
What if there we're trees that grow cheese?
Example said:Poster 1: What if WPM was Perma-banned?
Poster 2: Pluto would explode
What if dragons we're real?
Poster 3: There would be dragon pie
And so on.
Rules: Normal game corner/PB rules apply
What if there we're trees that grow cheese?