This is the motherload of "holy fuck" here.
Not only was he supporting ISIS on Twitter, he was posting anti-Islamic articles on Israeli Times, and posting feminist articles for Daily Kos, Thought Catalog, and Feministing.
He had 20+ alts here on Reddit posting false-flag attacks on himself with articles that he himself wrote. https://np.reddit.com/r/NolibsWatch/comments/3knaoj/more_of_joshua_goldbergs_bullshit_on_reddit_he/
He attacked himself on Twitter so that he could legitimize himself towards Feminists and gain their trust.
He posed as a writer on DailyStormer that Gawker picked up on https://archive.is/bOHew#selection-3631.1-3631.41 to send Stormfront to /r/conspiracy, /r/coontown, and other subreddits. He was the moderator of various quarantined hate subreddits.
He posted on /r/ShitRedditSays, /r/GamerGhazi, /r/SubredditDrama, /r/AntiPozi, /r/PanicHistory, /r/EnoughLibertarianSpam, /r/TumblrInAction, /r/KotakuInAction, and many others.
https://np.reddit.com/r/NolibsWatch/comments/3knaoj/more_of_joshua_goldbergs_bullshit_on_reddit_he/
He also got into arguments on WikiPedia for some years: https://www.reddit.com/r/WikiInAction/comments/3kyeb6/terrorist_troll_joshua_goldberg_had_a_wikipedia/
This guy played everyone on all sides in the free-speech, anti-hate speech arguments that have constantly popped up recently.