Most don't realize it.
By going either long or short you setup the incentive for market manipulation.
Others have only to shortly breach the needed price levels to trigger a liquidation event.
By the gains made you also provided liquidity for even bigger price movements the next time.
When going to a casino most know the house can be the only one to win in the long term.
Why would anyone thing this is different in the derivatives market ?
You really think this was setup for us to be able to gain ?
Borrowing against your #Bitcoin is a derivative exposure.
It is not a business designed so you can pull in future gains on your bitcoin, that is the marketing part.
It is designed these companies can make money.
And you are their yield.