Proponents of linguistic relativity (or "Whorfianism") have come up with some fantastically absurd claims over the years about how thoughts are constrained by language. And in the popular imagination, these claims would inevitably entangle with stereotypes about speakers of different languages. So I don't blame people for dismissing any discussion about the relationship between language and cognition as fringe theory…
You can find some very interesting examples of this from Chinese internet terminology. In an environment where "thoughtcrime" exists in some form, Chinese internet users have developed a lexicon of strange-sounding euphemisms for things that are forbidden to be discussed.
http://chinadigitaltimes.net/space/The_Grass-Mud_Horse_Lexic...