I suppose if I ever had political ambitions, I would have taken precautions to remain a little more mysterious on the internet. Although I understand why some people have need to keep their face to face world and their online world separate, it's never been an issue for me.
My online user name will be celebrating its 20th anniversary next year. If anyone runs across Bronzeage, or Bron Zeage, it's very likely to be me. When I needed a pen name, it was easy enough to insert a space and fortuitously, the surname Zeage does not exist in any language which uses the Roman alphabet. The picture is me, also. I've had this alternative identity for so long, I get calls from phone scammers who ask to speak to Bron Zeage, but they never pronounce it correctly.
That said, I've seen more than a few people who invited trouble into their lives because they didn't realize the internet is forever. There's really only one defense against accusations of being a black online Nazi, and that's "It ain't me, you got the wrong guy." If this happens to be true, it's a very short lived scandal, a case of a little smoke and no fire.
Even if the fire has long since burned out, there's always something in the ashes. Robinson is valiantly trying the It ain't me strategy, which is pretty silly, since he forgot the first rule of internet anonymity, a separate email account for every online account, and never show your face. There's just too many dots and they all connect.
Of course, it doesn't really matter. He's not going to lose any Republican votes because he once proclaimed himself to be a Nazi, any more than lose votes for lying about it when caught. It's just another symptom of GOP disease. Mark Twain said, "Never tell a lie when the truth will do." He may or may not have said this, but the lesson is lost on the GOP. They've gotten so used to dishonesty, falsehoods, and denial of the obvious, they lost the ability to see when it's better to tell it straight.