The questions presented by the opening post are:
“[1] Does anyone know what these chumros are, and how they apply or [2] anything else that would be useful to know?”
I read the first 18 responses to the opening post, and only one of the Gerrer chumros were alleged, i.e., wife must walk behind husband in public. There were lots of opinions about the chumros – principally that they are weird – but no descriptions of more than a single chumro. And most of the responses bordered on loshon hora, and sometimes from the wrong side of the border.