I vehemently dislike how they don't inform you that this is a paid service until after you've signed up. I signed up, but was unwilling to pay for the service (it doesn't seem novel enough to warrant use over like HN and Feedly, which constitute the bulk of my reading; and also I have no money).
Due to their disingenuousness, they have my email despite the fact that this is a product which I have no intention of using.
Transparency is important, and this sort of obfuscatory bullshit is not ok. Tell people what the product is before taking their information.