takahmamash wrote:
“FriendInFlatbush, succah on Shmini Atzeres is halachah.”
Maybe in chu”l, certainly not in E”Y. In E”Y nobody eats in their sukka on Sh”A.
In Eretz Yisroel, the minhag (as far as I know) is that even those who keep 2 days of Yom Tov will eat inside on Sh”A because of lo sisgodidu. Eating outside in a sukka is a public display of Yom Tov while for the bnei EY it is assur to eat in the sukka because of baal tosif. That being said, in Chofetz Chaim the sukka is in the middle of the building not viewable to the public so they do eat in the sukka. I have heard that even if your “family minhag” is to eat inside, this is a minhag ta’us and you should eat in the sukka.
(I don’t know if this applies to chasidim though I have heard that the whole reason for the chasidim not eating in the sukka on Sh”A is that in Europe it was freezing cold so they paskened to be meikel and eat inside for Yom Tov Sheini, this is the same reason they don’t sleep in the sukka – because their Rebbe didn’t sleep in the sukka which was because it was cold)