The aim of this proposal is to create lotteries with bigger potential gains and burn more cake in the long run. The adjustments i suggest are that:
. - All ranks get an equal weight pay out. (13.3% of cake goes to each rank)
Point 1 will have the result that if you buy 10 tickets and win in the first rank you will get around 80% of your cake back.
Point 2 and 3 will result in prizepools that are worth to be won and worth to take the risk to play the lottery. More people who want to play should result in more cake being burned.
In case i'm wrong and after 3 weeks or so you see a reduction in cake being burned you could raise the burn upon entry to 30 or 40% from the current 20.