“whoever says he/she knows when Moshiach is coming,is either a fool and a shoite or a charlatan or both”….
Well, you paint with a broad brush. Perhaps the guys who show up once or twice a month running up and down Eastern Parkway waving yellow flags BUT there have bee some fairly chashuvah rabbonim (and a least one chashuvah rebbitzen) making these types of predictions over the past several hundred years but I wouldn’t call them “fools” or “shotehs’.