Maybe part of why crypto is less formal is that it's a new field, and formality takes time to build up.

As for the general point, Root-Bernstein talks about how scientists who make major breakthroughs are fascinated by their instruments. I bet that Informers will write more-- and more clearly-- about why they chose a hypothesis, how they chose to do a particular experiment, and the physical and theoretical obstacles to getting a conclusive result.

As for eloquence, if I'm right that the researcher's mental states are a part of the story, then there's room for Informers to use language which is vivid as well as clear.