Wikipedia banned eight volunteer editors from making changes to articles on the Arab-Israeli conflict, following a ruling on Thursday by the online encyclopedia’s Arbitration Committee.

In June, Wikipedia editors targeted the Anti-Defamation League, declaring it an “unreliable source” whose data could not be relied upon when it comes to the Israeli-Palestinian conflict.

When Wikipedia first announced disciplinary action against the Wikipedia editors, the ADL issued a press release praising the decision “in the wake of a massive effort by anti-Israel editors to spread misinformation and hate across the platform.”

ADL listed all but one of the banned anti-Israel editors. It named “Iskandar323,” “Selfstudier,” “Nableezy,” “Levivich” and “Nishidani” as “being part of a bad-faith campaign in an attempt t o undermine the credibility of ADL.”