Well you see, I like to research people to make up my own mind. So in that research:
Richard Bertrand Spencer (born May 11, 1978) is an American white nationalist, known for promoting white supremacist views.[2][3][4] He is president of the National Policy Institute, a white nationalist think-tank, and Washington Summit Publishers, an independent publishing firm. Spencer has stated that he rejects the description of white supremacist, and describes himself as an identitarian.[5][6] He advocates for a white homeland for a "dispossessed white race" and calls for "peaceful ethnic cleansing" to halt the "deconstruction" of European culture.
Boy does he sure sound like a Nazi that deserves to get punched in the face.
Now that we have that out of the way, lets look at your cyclical retarded Nazi questions:
How about someone who's a Nazi?
Yes, definitely needs punched in the face.
Someone who you're convinced is a Nazi?
A declared white nationalist that supports only "white children", yep another punch in the face.
Someone who your mate told you is a Nazi?
I would do my own research and when they are Nazi's, yep 2 punches from my friend and I.
Someone who's been declared to be a Nazi by the press?
Once again, research on what he has said to the press...so hopefully a crowd with fists punching him.