Don't think of it negatively because it's just part of their marketing strategy to attract users. It is also a clever way of getting back CAKE from investors/traders and burning them to reduce the supply.
Match all 4 numbers in the exact order = win 50% of the pot (or split the pot if more than 1 winner).
Match 3 numbers in the exact order = win or split 20% of the pot.
Match 2 numbers in the exact order = win or split 10% of the pot.
Burn the remaining 20% of the pot.
Please note - in the event that no participants were able to match 3 numbers on any draw, the 20% allocated to winners will then be burned accordingly.
Joining lottery is one way to support the Pancake ecosystem.
