Regarding the "paste without formatting by default" opinion:

- Pasting a body of text with multiple headlines between two documents would require using a special paste command that explicitly preserves formatting.

- Some benefits of "convention over configuration" are only present if you stick to your existing conventions. Millions of people are already used to explicitly pasting without formatting.

Other remarks:

- Opinions need to be informed by facts and customer-facing research.

- There is room for divergent (Yes AND) thinking, as well as convergent (Just say no) thinking in product design. See "Double Diamond"[1].

1: https://en.wikipedia.org/wiki/Double_Diamond_(design_process...