I've noticed over the past few years that a lot of things go un-made because there's an assumption that no one will pay for something if it's done really well.
The reality is a lot of people will pay for something if it's done really well.
I'd easily pay $10/month for Facebook, if Facebook really had some way to shut off 100% of its marketing-based data things that we're all so worried about.
Thing is that people became allergic to asking outright for money from consumers a while ago. I used to buy software, and I still will if someone actually makes great software!
(I pay for all sorts of services that actually ask; Dropbox, a password manager, Spotify, Netflix, extra space on Gmail, etc. Provide an actually great service, make it a reasonable price and I'll pay!)
I've had a free storage account with them for years. I didn't log in for 3 years and when I logged in my data was still sitting there, safe and sound. Pretty nice for a free tier.
Because no one wants to pay for it.