One of the best answers on this website was deleted late last year.
Well, actually, it wasn't just deleted, the answerer was struck violently down. Possibly even costing the poster rep over it (it's got a spam warning on it, dunno if the same rules apply if struck for rudeness, possibly not showing up on their timeline).
This answer was marked as spam or rude or abusive and is therefore not shown - you can see the revision history for details.
Here's the post in question that apparently now violates the CoC:
While you may be an exemplary, clear-thinking individual, who uses the term best practice in a constructive manner, you have been preceded by a giant procession of zombies who use it as the antithesis of thought. Instead of understanding the important specifics of their situation and looking for an appropriate solution, all they want is to spot a herd in the distance and go trotting off after it.
Thus, the term best practice has been rendered an extremely strong signal of an empty resonant cavity in the place where a brain should be, and questions that mention the phrase get closed.
I flagged the answer asking for this injustice to be reversed and got this reply
No. The level of sarcasm in this answer is just too high. The CoC (or previous, Be Nice) always applied to everyone, calling people mindless zombies never fitted with that.
Let's examine both statements within this response as they apply to the answer:
How the OP is referenced
While you may be an exemplary, clear-thinking individual, who uses the term best practice in a constructive manner[...]
If that's an unacceptable level of sarcasm then you might as well nuke my account from orbit. There's practically nothing I've written anywhere on SE that isn't more sarcastic than that gentle statement. In fact, this paragraph is already more sarcastic. Ceding the argument to the OP (that they used the term constructively in their question) is sarcastic? Horsehockey.
Calling a large group of unidentified members asking about best practices "mindless zombies".
If that's the new standard, then get ready for some overtime, because we don't go a single day without thousands of comments and answers being added that refer to "help vampires." If I can't call folks who ask about best practices "best practice zombies" then I sure as hell can't call people who want gimmeh teh codez "help vampires". HOLY HELL! Throw "gimmeh teh codez" on the pyre as well! There are thousands of answers here and elsewhere that need to be struck.
A gentle ceding of an argument and the coining of an appropriate term a la "help vampire" for a large group of off topic questions (too broad/opinion based) doesn't deserve to get struck as if he called everybody who asks for best practices is a lazy asshole and the OP should count himself among them.