Anything is possible but there were a few accidental typos in some of the Q posts over the years. A few posts also talk about being "on the move". Both of which lead me to believe it's more likely humans making the posts. In Q post #4 the post says "Some of us come here to drop crumbs..." would a quantum AI refer to itself as "us"? Possibly but who knows. I do believe eventually down the road we will learn exactly who/what was making the Q posts, as alluded in Q post #918 "Wait until you learn who has been talking to you here"