In betting, the expected outcome is always negative, so the insurance companies always have to pay more than they get in fees.
I guess everybody would love to be insured against their gambling losses.
On other sites there is daily promotions of some games, when you play them you have cash back, they send mails to announce that.
You get rakeback also if you win. You get a part of the commission back and this is not related to whether you won or lost.
Other sites have also rakeback programs and they are not a publicly proven scam...
Publicly proven scam cause some jackpot and later deal between betsoft and 'Jonson' , is that the name of the guy who won that jackpot while he played with bonus spins? As I know they made a deal, but looks like you can't live with that.
I asked you before you to tell me which site is good for playing poker with bitcoins but you are still silent about that, also I said what kind of insurance players have in some games, why are you always criticise everything and in same time you don't give any answers on asked questions?