Change the Rule is a poster below you game. You set the rule for the next poster while following the rule set by the above poster. If 24 hours passes with no posters, a new rule can be implemented.
Example:
Player1: The poster below me must post in ALL CAPS.
Player2: TPBM MUST TELL ME HOW AWESOME I AM!
Player3: P2 is so awesome that TPBM cannot user the letter 'e', because we need two of them to spell 'awesome'.
Since, I'm the first poster, I'll start:
The poster below me must have the letter 'a' in their username.
Three logicians walk into a bar. The bartender asks "Would all of you like a beer?" "I don't know," says the first logician. "I don't know," says the second logician. "Yes!" says the third one. TPBM must be less than18 years old.