5 USD for one month
or 20 articles isn’t attractive. That’s fewer than one a day. Heck, it’s fewer than one per working day. It means if you add a dud (an article you realise you weren’t interested in after all) you’ll feel the loss. A subscription whose limit you worry about hitting is doubly bad for a customer, it only benefits you. The idea isn’t novel or rare (I’ve seen several Show HN which do the same), meaning differentiation could be important.
On the plus side, the landing page is clean and clear. It has close to no information but no fluff, except for the hero image which takes up a lot of space for nothing.