Earlier quoted context omitted.
The richest people, hence the most valuable for advertisers, would buy it. This significantly affects the whole ad business value. Such that the ad-free tier would have to be priced too high. It’s more profitable to “force” everyone to watch ads. I’m afraid.
- You don't have to be rich to afford a subscription for a dozen dollars a month. - Expensive cars and cruises are advertised all the time on open TV channels and other ad-supported media.
It's not about being rich. It's about having disposable income and willing to spend it. A $10+/month subscription to some entertainment magazine? That's a clear sign you're open to spending money - a sign ads could make you spend on stuff in the first place.