If you make me laugh, I'll usually tip between 1 and 3 , depending on how much I laughed and how much I've got. (Currently I've got none, so you can stop being funny for a while.)
(That's not a subtle request for donations; one thing I don't tip is posts where people ask for gold just because they don't have any. If you want , then contribute something to the site! And get off my lawn!)
I also sometimes tip for cool ideas or things which I think are neat, like f00k's custom Hammer of the Scots blocks & map, or Balthus_Dire's GeekList of gaming stories.
Tips received: 119.04 Tips given: 439.53. You guys are pretty funny.