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This article and a lot of opinions I hear like this are incredibly ignorant. There's nothing wrong with using Rails in a "classic" way as everyone seems to call it.

I do think calling Rails' method classic and these new frameworks "modern" a bit ignorant. If anything Rails is "modern" and these new frameworks are just that, new. Being new does not mean you're modern. It means you're new. A trend. You'll likely be gone tomorrow.