this is ridiculous:
2 statements:
1) the beit din were able to beat, starve, execute people as they saw fit. To execute someone for a specific biblical transgression such as breaking shabbat was virtually unheard of due to the difficulty in providing witnesses. However, if there was a mad murderer running around, the beit din didn’t have to hang around waiting for 2 kosher edim; they would execute him under a pretext like ‘morid be’malchus’.
2) if your rabbi says you can do something and another rabbi says you can’t, the other rabbi’s opinion is irrelevant as far as you are concerned. We do not have a sanhedrin and your jewishness goes according to your rav. So if your rav says you can use one your divorce would be kosher and your future children and not mamzerim.
Saying that another persons rabbi makes halachic rulings for you is like saying all ashkenazi people hold sephardim are breaking pesach when they eat kitniot. I can’t believe that people here are even discussing this.