Following the doxxing of the people behind pr0gramm.com the community knew that retaliation by ddos or other bad methods would not work for Brian Krebs, who enjoys DDOS protection by google.
So they started a donation raid on the German Cancer Help Foundation, because Krebs literally tranlates to cancer in german.
The raid is ongoing and unconfirmed sources talk about 11k donations.
The avarage ammount seems to be > 15€ with at least one single donation of 10k€
rel. https://news.ycombinator.com/item?id=16678536