We have a rainbot that rains on random active chatters. (currently 8888 satoshis every ~10mins)
Dean (the owner) usually donates to the rain fund. Bazza also donated .1 BTC today.
And sometimes bazza will activate the "hailstorm" which means bigger, more rapid payouts.
Cheers
Edit: @Neotox This is one of the few things that are actually totally free
That's why I think people should be more grateful. Just think of it in USD not in magic internet monies haha.