Historical clue formulations

• "LMAO" — 2023-05-27
• "You crack me up!" — 2022-05-02
• "LOLOL" — 2021-09-19
• Response to a riot — 2017-11-18
• "You think you're soooo funny ..." — 2016-11-26
• Desired response to a 3-Down — 2016-10-01
• Response to sarcasm — 2010-09-10
• "Very funny!" — 2008-08-31
• "Oh, yeah, that's funny" — 2005-12-22
• ... — 2004-01-15
• Sound of feigned amusement — 2003-12-20
• Big laugh — 2002-02-12
• "Very funny!" — 1998-05-17