Please quit suggesting that I must be too stupid to understand no matter how much you try to help me.  To quote from the news article: 

 ::::::''For Graeber the next month and a half was a carousel of meetings. There were the weekly GAs, the first held near the Irish Hunger Memorial in Battery Park City, the rest in Tompkins Square Park in the East Village. 

 :::::In other words, Graeber's group held weekly GAs throughout August and the first two weeks of September in which they planned such things as the GAs that were to be used after the September 17 opening of the occupation. I'm going to revert your changes.