I like this idea. If I could subscribe through Twitter for the magazines/papers I'm reading I'd be much more likely to take on multiple subscriptions or try new sources out than I am now.
Basically turn it into an online Newspaper stand where I can read gated content without having to give out my personal info. or remember a username/password (to anything but Twitter.)
Yes - an adjacent thought, too: niche publications that are unable to make significant advertising money through sheer scale [0] would benefit from being able to attract users who just want to test the quality of their content before purchasing a full subscription -- or that wish to pay but only periodically for a smaller dose of content.
This might cause some niche, non-clickbaity magazines that do not have good web presences to become more interested in publishing content online.
Basically turn it into an online Newspaper stand where I can read gated content without having to give out my personal info. or remember a username/password (to anything but Twitter.)