The Furies were called The Kindly Ones for the very same reason that any wise person who believes in the fae will call them The Fair Folk when discussing them (or issuing warnings to people who don't) because speaking about either of these beings calls for their attention - which risks their anger.
The Furies were called The Kindly Ones for the very same reason that any wise person who believes in the fae will call them The Fair Folk when discussing them (or issuing warnings to people who don't) because speaking about either of these beings calls for their attention - which risks their anger.
Nothing like a little divine rage to keep society from falling apart!