Money is fungible, right? If I donate $5.00 then I am offseting $5.00 worth of running Wikipedia's infrastructure, whether or not they ceremoniously take my $5.

Money is fungible, right? If I donate $5.00 then I am offseting $5.00 worth of running Wikipedia's infrastructure, whether or not they ceremoniously take my $5.00 bill and put it into the vendor's pocket.