Let me also explain you for the hundred time why we use 50,000 satoshis withdrawal fee: because it is used to cover singular transactions.
Since we are doing direct payments to single users upon request we could not use smaller transaction fee due to the recent slow blockchain's speed.
This fee allows you to get your transaction confirmed in a matter of minutes (hours in some cases).
As far as I know freebitco.in also allows you to request direct payments with a fee of 80,000 satoshis.