I forget which but a bit of code in either the original bitcoin wallet, or one of the early litecoin ports of it, had the "tax" and so it was adopted as an idea into the new wallet software which was being developed for potcoin (and orgcoin and others).  We thought it was odd when we first saw it too, that a tax was hardcoded right into the program and it was NOT commented out. We wondered about all the numbnuts who had just blindly compiled it without looking.  Let me reiterate this original open source code that the wallet was built upon had nothing to do with potcoin.

The "tax" was de-activated and was, as I said, left there for other purposes; namely to allow a licensing fee to be generated if that should become a necessary or desired feature.  And again, I am limiting this statement to the original code not the winblows derivative works.

The "foundation" is a non-profit Colorado corporation who would become the beneficiary of the licensing fee in the event the tax was turned on.  This really had more to do with Orgcoin than potcoin.