That home page is awful even by the standards of actual scam websites.

I remember the now defunct site that showed me how to bag bonuses as a student a decade ago being straightforward about your pretty modest level of expected winnings (and for blackjack bonuses, modest level of risk) and focusing mainly on the actual maths.

For anyone that wants it as a passive income project, there's some very nice potential affiliate earnings (redirected through another domain, naturally) for anyone that wants to create a less scammy looking explanation...