The issue at hand has been explained multiple times. I don't believe I can find a new way to put it that will be to your satisfaction, but I just want to stress again that it is not setup for us to profit.
I do admit that we have fallen behind on schedule, but by no means are we losing focus or effort (I've been dedicating the majority of my waking hours to Moneypot).
We are here to build a long lasting product and service in the cryptocurrency space.
If you give the user the option to choose how much to take from their withdraw to use on fees, you need to make sure that you use that money on fees.
What if we take 300 bits, and the fee ends up being 3000? Do we go after the user for that as well?
It's a 2 way street. We sometimes profit (a negligible amount), and sometimes we lose. This version is much simpler, fluctuates with the blockchain, and the user only has to pay the fixed fee regardless of what it actually happens to be (bigger or smaller).