The rates are garbage, but if a loan, or whatever it is called closes early, would the lender still get paid the interest for the day lended? (ex you loan 1 btc, the swap closes in an hour, do you still get 0.02 percent or do they screw you)
The rates are such crap it seems kind of pointless as I could probably make more money off of a $1 scalp than lending for an entire month, but if early closing still gives you interest it is not that bad during times where you don't have a strong stance on a position.
I emailed them about this last year. There ought to be a minimum charge (or another way to think of it is a minimum time) because the proceeds don't even pay for your time to click "offer swap" if it closes in an hour. And also I have seen people manipulate the rate by grabbing and then releasing all the swaps. This drives the swap % up.
Maybe if other people also complain something will be done about it.
You get paid for at least an hour even if the swap is immediately closed which doesn't happen all that often.
To work around this use an autolending bot that relends instantly if a swap is returned. This requires no effort from you and ensures your funds are lent out as much as possible.