Do you make more money to wait until rates are really high? Has anyone optimized their funding?
You can expect even higher rates in the next few weeks. However, these are not normal
market conditions and the APR is usually more like 5-6 % per year after fees.
The reason for the unusual high interest rates are the upcoming BTC Gold fork
and the November SegWit2x fork. People don´t want their BTC stuck in lending offers
when the forks take a snapshot of the BTC chain.
Before the Bitcoin Cash fork lending rates were really high at Poloniex and Bitfinex.
You can expect the same situation in advance of the two upcoming forks I talked about
above.