Come on, people. This is not "PURE GREED!" as one review said. While it's unfortunate that some features are now premium, it's apparently the only way to keep development going. As the developer said on the Google Chrome extensions page: "I'm one person maintaining this, and the options are basically: charge for some features, run ads, or stop working on it. I'm going with the first one. Core features will stay free, open to feedback on github."