Coinbase recently imposed a kind of ludicrous $3000 a day outbound limit on accounts that had previously been limited to 50 BTC/day.
Removing the limit involves buying coin from them, waiting 30 days, and solving some seemingly impossible credit report based identity quiz (some people report passing after 10 tries, you're limited to one try per 24 hours).
We did that back in the online poker gambling days. The casinos would throttle USD withdrawals, so that the players would be forced to wait and end up losing their chips by playing more. Physical casinos do this by attaching hotels next to the slots. This sounds similar.
