Or chrome, or gmail, or firefox, or ... sadly most of the internet is financed by ads. Only some parts remain free of them. Wikipedia for example. And even HN here ... you can argue it is payed for by the occasional ads, or rather all of it is an ad for the VC ycombinator.
Even Wikipedia feels like each page has a prominent “Plea from Jimmy Wales” ad at the top of every page (even after donating), even if it isn’t billed as such.
Many of the YCombinator companies advertise jobs on this forum, and some also post ‘demos’, which are often advertising to potential investors, clients, and partners.
I disagree. The value I get from the Internet is almost entirely from non-ad-driven sources. The ad-driven stuff is very low value to me.