This answer from a year ago suggested "Shylock" as a slang term for "debt-collector" and received 4 upvotes. Academics still debate whether Shakespeare's character Shylock in The Merchant of Venice was anti-Semitic, but there's absolutely NO debate about whether it's anti-Semitic for denizens of the 21st century to use Shylock as a synonym for loan shark.
The answer cited this 2014 TIME article, "When Did ‘Shylock’ Become a Slur?", and used quotes from it totally out of context, completely changing its meaning. This is the meaning those passages were actually conveying:
The word “shylock,” which has been used to refer to loan sharks, is an eponym from a Jewish character in Shakespeare’s The Merchant of Venice. Jewish Americans have publicly challenged the portrayal as an insult to Jews for more than 50 years, even as it remained a fixture of the modern lexicon. Today, “shylock” is considered an anti-Semitic slur [...] [but] the term was, not too long ago, considered by many to be appropriate for public usage.
A quick survey of TIME’s archives reveals 119 articles that use the word. Many of those are articles about The Merchant of Venice and Philip Roth’s book Operation Shylock — but the last time it was used casually, without reference to the character, was in a 1977 story about the mafia”
The article goes on to reference a "slang lexicographer":
Concern about Shylock wasn’t new in the ’60s either. Writing in the journal Engage, slang lexicographer Jonothan Green has noted the word was listed in a 1950s collection of “schoolyard wit and wisdom” as a taunt for Jews. (Green also notes that the word doesn’t start to appear to mean a loan shark until the 19th century.) [...]
In short, “shylock” has long been considered offensive — but that didn’t stop its casual use in conversation and print at least into the 1970s.
What's the best way to handle something like that? I would think it should either be flagged as hate speech/offensive or at a minimum, edited to clarify that it's considered an anti-Semitic slur in modern usage.