No, worse, they are examples of Halachos that are outright ignored.
That wasn’t the question.
Fair for Tzedaka, but after rethinking Zmanim, I would argue that Yeshiva Bochrim who daven at 10:00 really believe that Zman is a Chumrah that they have to keep when in Yeshiva, but if they sleep late, no big deal.
I believe the ridiculousness of that Shittah was proven here.
I disagree.
For a different thread.
Still, we are left with “four inches” from one side, and Negiyah from the other. The difference between the two (as you pointed out earlier) is that many learned people think 4 inches is real Halacha, while Negiyah is more of an “Omer Muttar” type which knowledgeable people are well aware of the Issur.
Anyone else want to add to the list?
ZD – Shloshe Shevuos is a question of application. No one holds they are a Chumrah.