You're right that a lot of people lose everything in the hi/lo game. As I see it, now, it would be extremely problematic for regular users to go from 0 sat to reach the minimum 30k sats in order to be able to withdraw sats from freebitcoin.
However, I honestly wouldn't be surprised if there are still users (cheaters) who are still farming free sats on freebitcoin around the clock.
Hi-Lo can be such a bitch sometimes. Few years ago i devised a system, start with 1 satoshi, and on loss, increase by double. I let it run for an hour and made a nice profit.
So i continued to do this for few days and i was few thousand dollars in plus. I beat the system, i thought. Then, i did it once more, and had like 16 losses in a row, and lost everything.
Is it rigged? I dunno. Maybe. But 16 loses in a row, seems a bit odd
I had exactly the same experience in 2014-2015, when I first started playing hi-lo on freebitco.in. I was a kid at that time and I deposited 0.005 Bitcoin on freebitco.in, which was worth 2.5 dollars. I invented the martingale strategy on my mind (I didn't know that such a thing has existed) and left my computer on with automated betting. Hours have passed and my 0.005 Bitcoin became 0.01 Bitcoin. Then I stopped automated betting, withdrew 0.01 Bitcoin and the next day I deposited 0.005 Bitcoin again. I turned on my computer and started automatic betting, left the computer turned on for 36 hours and I earned 0.002 Bitcoin.