Outing

On Saturday, Twitter user @YesYoureRacist began to circulate photos of the tiki-torch-carrying mob of white supremacist who marched on Friday night, as well as photos from the “Unite the Right” march.

[...]

Using the hashtag #GoodNightAltRight, @YesYoureRacist collected identification on a number of racist marchers, including [Cole White of Berkeley, CA, who was subsequently let go from his job at Top Dog — a chain of hot dog restaurants] and James Allsup, the president of Washington State University’s chapter of the College Republicans.

One marcher — identified as 20-year-old Peter Cvjetanovic — tried to frantically backtrack after being exposed as one of the white supremacist marchers, insisting he’s “not the angry racist” people see in the viral photos.

  Raw Story

Photos and information leading to identification of white supremacists at Charlottesville are being collected at Yes, You're Racist/#GoodNightAltRight.

They need to be very careful with this.

UPDATE:

Doppelgangers is not the only issue in this type of action.  I can see the value in it, but also the dangers.  Another danger is that it leans toward Stasi type citizen snitching.