Feif Un -“Health: Someone did say the 3 shavuos don’t apply. R’ Meir Simcha was quoted as having said that.”
And I posted -“The Satmar Rebbe zt’l said it’s Ossur, so until you find me a Poisek on his caliber in our generation that says differently – how could you argue on him?”
Noone that you mentioned fall into this category. Note “caliber” and “in our generation”!”
He isn’t from our generation.
“As for the mizrachi camp, why can’t it be someone from there? What if I ask you to quote someone who says the 3 shavuos are still in effect, just not from the Satmar camp?”
That person from the mizrachi camp would be good for s/o like you who is MO, but a guy like “curiousity” who claims he is from the Yeshiva camp hasn’t brought down anyone nowadays who says the Shavous don’t apply.