what's BNE?

https://en.m.wikipedia.org/wiki/BNE_(artist)

BNE is an anonymous graffiti artist known for stickers that read "BNE" or "BNE was here". The artist has left their mark in countries throughout the world, including the United States, Canada, Asia, Romania, Australia, Europe, and South America. "His accent and knowledge of local artists suggest he is from New York."