> I always got the impression calling it the xbone was pejorative.
Nope. It's the defacto name for the thing among pro developers already (much like you'll never pry the term "PSX" for the PS1 out of the brains of 90s-era devs). It's only pejorative when prefaced with a string of curse words, usually from GPU programmers wondering why MS cheaped out on the pipelines vs. the PS4.