Gaon: “According to the Noda beYahuda, the 100 “rabbanim” need to be Lomdim Miflagim and at least be able to Pasken” – and know the Halachas relevant to what they are co-signing- not just any guy from Kolel.”
Nu, ידין ידין.
“Also, a HMR can ONLY be utilized in specific situations and is invalid (according to many) if used just because one decided he wants to divorce his wife and she refuses.”
Agreed, of course. If he wants to divorce his wife since he found a prettier girl and she refuses his divorce, the rabbonim will rightfully shoot him down and tell him to stay with his wife. He needs a halachicly valid cause to divorce. If she then refuses he’s entitled to a HMR.