A big sin to me is that a lot of them will do stuff without explaining in simple English beforehand how they’re going to do it, why they’re doing it, and why it

A big sin to me is that a lot of them will do stuff without explaining in simple English beforehand how they’re going to do it, why they’re doing it, and why it is important. I don't fault theoreticians for not using simple English. In many cases you're dealing with objects that are built upon a tower of abstractions with which you and your colleagues are already intimately familiar. This is true in any technical field. Sit in a hospital cafeteria long enough and I'm sure you can overhear surgeons talking shop over lunch. I wouldn't expect them to use simple English either. They have a huge corpus of terminology for every muscle, tendon, ligament, and bone in the body. Skipping past the simple English allows them to be brief and fluid in their communication style, at the expense of leaving laypeople out of the loop.