The lingo and speech patterns are much the same, except the Q that has posted the most lately is more juvenile sounding.
I disagree entirely, Bodleian. Subject matter, conclusions, word choices, differ completely from what I read in the supposed FBI AMA sections, especially the one with a Q associated with it, from the more than 700 postings of Q Clearance Patriot. That person was much more absolute in responding.
I do not see anything at all "juvenile" in the current Q postings unless you are referring to the deliberate and obviously intentional taunting of the target individuals.
Frankly, those who claim that Q is some fourteen year-old kid LARPing are missing the fact that whoever Q is, he has a remarkably adult knowledge of world politics, events, and people, In addition to the relationships of those people to the many organizations involved, not to mention a pretty good grasp of World history, and the social and economic causes that drives events, and the motives that drive people that is far beyond the ken of even an extremely bright 14 year old, or even a 24 year old doctoral candidate or even most PhDs.
What Q does demonstrate is the kind of grasp of those thing a genius level renaissance polymath would have after a forty or fifty year career interacting with numerous aspects of all of society. . . someone like Donald Trump with a team of like minded advisors.