At least some people in the TWIT podcast family have repeated many times the idea that Brin or Page had at one point said early on that "advertising ruins thing

At least some people in the TWIT podcast family have repeated many times the idea that Brin or Page had at one point said early on that "advertising ruins things" and this wasn't their initial goal. I don't know if the information is true, but I know I've heard it more than once.