[tyzoid]

Upper-end estimates for typical web traffic CPC/CPM rates are around 10¢ per click and 0.5¢ per impression. I never click on ads, but let's hypothesize that with very-well targeted ads 5% of people click through. That ends up at around an estimated 1¢ per page view. Even at 5x that rate, I'd be able to read 1000 articles ($5 USD) before even approaching the $6 USD/mo rate I think is reasonable.

That's over 30 articles per day, again at a 5x rate than advertising will return. Will there users that read vastly more than that? Sure. But there's also many readers that will under-utilize the service too.

Just take a look at how YouTube Premium is doing, many creators report that their premium revenue vastly outpaces ad-supported viewers on a per-view basis.

If the revenue doesn't make sense, then you could supplement the revenue with ads for users who exceed a soft cap, or have tiered subscriptions. Something like a basic (1k articles per month)ad-supported subscription for $4, basic ad-free for $6, and unlimited ad-free for $10.