Let's see... 15,000 page requests/second = 473
billion requests per
year for Wikipedia? At $4.7 million dollars to handle those requests
that means I owe $0.00001 per page request. At a below minimum wage
rate of $5/hour, I guess I owe 0.72 seconds of effort for every 100
Wikimedia pages I view.
It's not a matter of "owing", it's a donation.