I don't think people would pay "a dollar or two" for content that takes a minute, or even five, to read. A dollar or two is more like a small game app, or a on iTunes that you'd listen to many times.
I think you might get 5% of people to tip you a nickel for your particularly good Medium post, if the operation cost you nothing more than a click.
But unfortunately, that's less than the credit card processor will take to handle the transaction. You could set yourself up as the intermediary so that you can batch up transactions, but now you're handling money. That's a huge hassle, and it's why the credit card processors can help themselves to $.10+2.6% for handling your transactions.
Cryptocurrencies could have actually had a use there, but before it got started the entire domain was swamped with speculation, money laundering, scams, and speed-running the history of financial regulations.