This is kind of an ironic comment given that this whole discussion is about visiting the sites as a paying subscriber.
I pay for the NYT. If I visit without adblockers, the site is absolutely stuffed with obnoxious amounts of advertising. I mean, of course I use adblockers normally, and it's basically a requirement no matter how much you're willing to pay for every product you use.
Because everyone wants to double (and triple- and quadruple- and...) dip. Buy a $2000 TV and you'll likely discover ads on the homescreen, ContentID to sell your viewing habits, etc. They figured "why not?" because someone will always rationalize it.