Everyone has their 'favoured terms'. Even books conflict. I've come across several music books with lots of conflicting terms and musical ideas. The point is, as a result, lots of terms get mixed up and therefore become interchangeable, like sweeping or raking, different terms for harmonics, stuff like E, Emaj, E M, or E Major, all that stuff.
At the end of the day it doesn't matter anyway, people usually still have an idea of what your talking about.