I also remember a few years ago (6.5, to be exact), the Rebbetzin and I went down to Eilat for a couple of days after Sukkot. We arrived in Eilat a few hours before sunset on isru chag (the Rebbetzin was then pregnant with our first child, so we managed to visit every single rest stop on the way down). My brother-in-law then decided to play a cruel trick on us. Just before we arrived, he called and mentioned to us that there are acharonim who hold that one needs to keep 2 days of yom tov in Eilat. He really scared me before I had a chance to think it through, because it is forbidden to do any melacha if one is in a Jewish community on 2nd day Yom Tov even if one is a ben Eretz Yisrael.
When I thought about it, though, I realized that since R’ Tukachinsky holds that Eilat is indeed part of Eretz Yisrael, I can do melacha. As long as there is a position, even a minority position, that something is permitted on Yom Tov, there’s no issue of ‘mar’it ayin’ for a ben Eretz Yisrael to do it. Phew. Crisis averted. Good thing I knew the sugya, right?
Then we actually started to walk around Eilat a bit, and I saw all of these people with kippot driving cars, etc. At first, I was thinking ‘Hey, that guy must hold like R’ Tukachinsky; that guy must be kim lei like R’ Tukachinsky, etc’. Then I asked someone if anyone in Eilat keeps 2 days, and he looked at me like I was from Mars. Apparently, the only people who keep 2 days in Eilat live in Bnei Brak and
Similarly, I imagine that nobody actually keeps Shabbat for two days a week in