That was a talk from 7 years ago. Wikipedia experienced explosive growth at around that time, and the WMF (the organisation you donate to) have expanded their remit since then.
Re:Wikipedia doesn't need your money
by davidgerard on Friday December 21, 2012 @03:13AM
(#4951958)
Back then the site also went down in a stiff breeze.
It's 2012 and "I think you'll find it's a bit more complicated than that."
He basically says it's dirt cheap to host and operate and that it's one of the best things about it.
At the time of the video their bandwidth costs per month was just 5000$ and one paid programmer.
Aka you don't need millions to run it. So I was a little baffled when I saw his first big campaign to raise money.