I never really noticed until yesterday, you can kick people who first show up when you look at the list of tribe members (the first 35 members). However, as you scroll down the kick button does not appear for the other members.
Also, if you click on a name and the kick button shows up (again, this only happens for the first 35 members), and then scroll down the position of the button stays absolute (I think that's the HTML name for the positioning). In other words it stays in the same position on the screen.
Also, funny trend with the kick being always broken haha
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