I may have missed something, but why are Kraken doing this exactly?
Promotion would be number 1 reason it seems. Most of the time trading companies are just looking to get people through the door for 5 minutes and process a trade or 2. If 10% of people come back to trade again that is huge for kraken.
Doesn't seem like they would net a profit by doing this, but maybe they get more traffic than I think
Everyone used to trade on gox, out of the guys who were smart enough to get out in time(not me) many of them still seem to have some coin left in gox when it went down. The higher price trapped people.