Who knew that perpetuality was only 3 years long. "You'll own knowing and you'll be happy".
Putting subscriptions into the longer term without automatic recurring payments certainly paints them as less of a subscription, but that's still a subscription of another form in my books, given that you literally lose access until you pay up again. There's no way to legally own this product anymore.
Really not looking forward to the idea of github.io links all becoming dead. So many repos with documentation at a github.io URL, with those links spread all across plaintext files and Stack Overflow and forums