The letter of excommunication [cherem] that has the signature of the Gra is ignored. I am not sure why no one pays any heed to it. One of the reasons I think it was signed was because of the problem of worshipping dead people which the Gra thought does not represent Torah very well. [That is an understatement. It is plain idolatry and not Torah in the slightest sense. ] Another issue is the "everything is God" which is not what the Torah says or holds. The Torah is monotheism. That is God created the world; he is not the world.
[I do not think that Rav Nahman came under the herem after I read the actual language and whom it was meant to include. However there is a odd tendency that when people get involved in Rav Nahman (which in itself is a great thing) that they go off into directions that are not good and highly destructive. It seems to open the door to leave the straight path of Torah.]
