I didn't understand how it will help you all those extra things in the hi-low game because site admin itself posted long back that he is making a profit from only this game on this site. That means whoever playing this game is losing and admin is making a profit to pay all those free things.
This is the whole thing about gambling that many do not understand. It is true that the house edge means that overall the house should come out on top. That however doesn't mean that every player must be a loser. There is variance in luck that means some will win. Also, many players actually increase the house edge by using strategies like the martingale.
When you know this fact already then why would you want to lose money on this game instead of play same game on another site where you got less house edge.
I play on sites with lower house edges for most of my gambling. But I also like the bonus features here. My stats show I'm a little bit down on the hi-lo game but that doesn't take into account that I've taken 3x more than that from just the hi-lo bonus. Also, I've made enough reward points to cash in directly for 1 satoshi each. OK, I'm yet to win anything from the lotto tickets but here's hoping. When you understand how to get the best out of the bonuses you'll work out they can be better than a lower house edge.