Oh yea, lets take the word of one former neo Nazi
Just like when all the articles came out that said the florida mass shooter nikolaz cruz was a member of a neo Nazi group cause a member said he was and that he went to meetings and such. Later found out the guy was completely lying and there was no link at all between the two.
I'm not saying they aren't using it. But every evil orgainazion is using all forms of media, whether its forntite, twitter, facebook, youtube videos, ect. Nazi's, ISIS, ect. They are all doing it. This is not news and not surprising.
I don't but about this story you just mentioned, but I do know the Picciolini is a well-known activist and dude who's legitimately involved in deradicalizing youth.
Besides this I agree - there is nothing new about such groups using social media and popular games to recruit. I mean there was even an ISIS-developed game at one point.