The term "SJW" was in fact coined, unironically, by its supporters. Stack Exchange seems to confirm this: https://english.stackexchange.com/questions/202080/ori

The term "SJW" was in fact coined, unironically, by its supporters. Stack Exchange seems to confirm this: https://english.stackexchange.com/questions/202080/origin-of-the-phrase-social-justice-warrior https://english.stackexchange.com/questions/202080/origin-of... That it backfired on them does not retroactively invalidate it. The same happened with the Tea Party and "teabagger".