I pay for things I use.
The Wall Street Journal is roughly $200/year or $17/mo which still includes ads but also comes with a very broad array of curated & edited content.
Wikipedia is free, but I pay $5/mo because I think it’s fair. I use it all the time and insert links to their site in my social posts. It’s a good site.
The EFF does great work and I support them with $25/mo because it’s a cause for which I believe strongly.
Creative Commons gets $5/mo because they have created something useful that I use and include in my photography and videography projects frequently.
So…Medium is good, but it isn’t WSJ or NYT good.
It’s probably more like Wikipedia good.
Which makes me think I would be willing to chip in $5/mo if the went subscription.