Inessential Weirdness in Software Carpentry

Sumana Harihareswara, of the Wikimedia Foundation, has started compiling a list of inessential weirdness in open source. (It was inspired by this article, which made me blush: I was a howler more than once in my youth.) My question is, what inessential weirdnesses are we guilty of that aren't already in Sumana's list?

In the wake of posts about Shopify's support for white nationalists and DataCamp's attempts to cover up sexual harassment
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