For 100 USD a year, You could buy about 10 - 15 courses on Udemy.com And compliment it with free resources on the web. I don't see the attraction of what Mozi

For 100 USD a year, You could buy about 10 - 15 courses on Udemy.com And compliment it with free resources on the web. I don't see the attraction of what Mozilla is providing. Perhaps companies can have bulk subscriptions or they have some sort of revenue sharing deals with authors.