I read this kind of argument regularly to justify any subscription service, and simply, it's bogus. Maybe you, as the commenter might feel you get $12 per month worth of entertainment or spend 4-6h on the site daily, but that's simply not true for everyone.
I deleted my facebook account over a decade ago, so it's value to me is exactly $0 per month, but I've seen this argument made for Netflix, Amazon Prime, Youtube, etc, none of which I have a subscription for. Now, all of those I perhaps would get some value from, but less than the minimum subscription value.
Currently, I can still enjoy Youtube for free, but their recent push to make advertising far more obnoxious will probably push me away entirely. When that day happens, even though I enjoy watching Youtube occasionally, it's simply not worth the price of the minimum subscription, so I will just stop using it. It's actually already pretty close to that point for me - recently, adverts seem to be far more frequent than before and I've noticed a few occasions when I've had two back-to-back 30-second un-skippable adverts every 5-10 minutes. When these tactics eventually force me off the platform, their revenue from me will go from a little per month from ad revenue to $0 per month.