If anybody is interested, i've been on FBC for over 10 years now, I have spun the free wheel a hell of a lot (most days, usually multiple times a day).
I looked at my personal stats, I've rolled just over 11,850 times which has earned me 0.0165 bitcoin.
At the time of writing this post that is worth around $1700.
Most of that came from the early years when 1 BTC was worth a few hundred dollars (I remember during promotional times getting several thousand sats a spin).
After reading your stats I also check mine which are much greater than you which really surprised me because currently its showing FreeRolls 24,158 MultiplyRolls 62,899 Total Payouts 0.55886580 Total Deposits 0.54139200.
But still many problems today I deposited 15,000 Satoshi for test case these appear after confirmation but suddenly disappear now checking for long time but nothing happening.
The stats I posted were only my free spins and earnings from that. I did not include my referral earnings or any deposits which are much bigger.