Mostly because people here are in the anarchist / libertarian bent.

These types do not play the lottery.
Lotteries are taxes on stupid people.

And, further, you are an unknown, so we on the outside cannot tell if there really is a lottery, or if we are sending our coins down a black hole.

From a marketing perspective, you are giving out no entertainment. There is no feedback about "you could have won", there seems to be only the black hole that you put your money into. There isn't graphics about how many played last time and how much was paid.

All in all, it just appears rather scammy.