Sorry if I'm slow here, but how can b and c both be true? Your members are charged a fee for mining BTC.
The assertion being answered was that I must be ripping people off if I don't charge an additional fee for my Bitcoin port.
The point was that we don't charge additional fees on BTC+NMC rewards.
I feel slightly better about Multipool since you have now changed your website to inform people they are paying a fee to Bitminter for mining BTC. Only one problem...you still don't have your story straight. You tell them Bitminter charges 1.5% fee. Good for Bitminter if the extra .5% is a donation, bad for your users that they are still ill-informed.
From
https://www.multipool.us/help.php:
Q: What fees does this site charge?
A: This site charges a 1.5% fee on all mined blocks, except for the Bitcoin pool which has a 0% pool fee. Our upstream pool (Bitminter.com) charges 1.5% which is passed on to users. User pays network transaction fee (see below) for PPC, NVC, CGB, and CAP withdrawals, and a transaction fee for on-demand withdrawals of less than the auto pay threshold of other currencies (see table below). Auto payouts and daily payouts are always fee-free.