Even if you win, chances are, on the last day of the contest, you will be pushed away by whales and people wanting that pile of cash or rewards for themselves

Are you saying average Joes like us, who have a limited bankroll and check our balance on every spin has no chance of winning the contest? 'Cause you're very wrong on that front.

First of all, most whales play for fun, and since they already have a very fat wallet, they don't care about a $150 prize (1st prize gets only $150).

Plus, the mechanics of the contest don't allow Bonus buys, LM made sure of that. It's a contest that every forum user can participate in.
Those who have a huge amount of capital to gamble with won't look at money that they think is small, so I agree with you on that. And as for contests, make no mistake this is also determined by luck too, so no one knows who will win it. Maybe even the first person to enter the contest will be able to win the prize.
There are many things in gambling that we sometimes don't expect. But I just remind you, don't let us chase the victory of the contest, it means that everything depends on luck so even if we chase it if we are unlucky then we will never get the victory.
So make this contest part of having fun too, after all if we have to win then we will win too.