Sam2 -“Health: It might seem that way in the Sugya in Yevamos but the standard rule quoted throughout Shas is that we don’t say it.”
True, but Tosfos on the bottom of Nun -Ches:2 asks why don’t we learn out Esay Docheh Esay V’losasay from the Tzad Hashoveh from Metzora? He answers because of Sholom Bayis. This is very Shver because the Gemorah uses this to try to push off Shiluach Hakan, nothing to do with taking haircuts. That Metzora for Sholom Bayis we want to end it quicker -here we want to give him a haircut. It’s two different Asays. The haircut won’t make the Tzoras over quicker. So why can’t we learn to all over Esay Docheh Losasay V’esay? To say that since there is a Din of Sholom Bayis makes it so we can’t learn anything out of it – is a big Doechek. It’s not like Kohen where the whole Metzious is based that a Kohen is different than e/o else!
Also, this Asay of V’enesem -you can say you are Yotzay with other things, not just fasting, so it could only be a Lav here anyway.
So he has a good Kasha -why shouldn’t we eat a Seudah on
Shabbos/Yom Kippur?
I have an answer, if you’re interested.