Unless you swipe a lot, you'll only see cards from people near you — this limits what content you can see. If one of the goals of Plague is to spread information around the world, it should have a bit of randomness in the initial spreading of posts, rather than only infect nearby users. Many posts won't make it across an ocean.
Plague can be fun for a while. It's slightly addictive, until you start seeing the same photos posted by multiple people, and the same tired motivational quotes and memes. The concept is interesting, but the fact that you can't choose who to follow means that it's too easy to get overwhelmed by banal content, rather than finding interesting people.
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