Some of the settings are off by default. You can check the settings by clicking on the extension icon in the toolbar - in Chrome you may need to click the little puzzle-piece-shaped icon and then the blue "i" in a circle.
Great, I got it now. And already changed/activated some more features. It's really amazing. And one more thing I want to know about the feature ''
Hide user's "airdropped" merits:'' Which merits actually will be counted as airdropped merits? I could not get it correctly.