A common phrase
originated from Twitter, by the locals (
general public) after seeing the intentional and often times unintentional and displays of power of the also called BTS Army. The phrase, got popular after an interaction between @jovanmhill and @jamescharles, where the later threatened the former with a lawsuit and got "I only fear BTS stans and no one else " as a reply.
Note: One should only fear BTS ARMY, (BTS stans) if one is
disrespectful to the fandom or the band, they tend to be peaceful but you will feel their wrate by millions if you make that mistake.