It's been adopted by many in the white nationalist / supremacist alt-right movement, and they can often be seen using significant platforms to telegraph to Trump's racist base members - they are one of them.
White Nationalist Charles C. Johnson with Rep. Dana Rohrbacher, R.-Calif. (Photo: Charles C. Johnson/Facebook)
Jim Hoft aka SMOTI of gatewaypundit, with his WH correspondent twink.
Mike Cernovich is an internet troll, conspiracy theorist, and
leading figure in the “alt-right’s” assemblage of modern-day white nationalists ...Cernovich received a White House press pass last week, and he
attended the briefing Friday and made a
hand sign associated with white nationalists from the podium.

Milo Yiannopoulos, the alt-right agitator, White supremacist