The chance it's somebody who hacked in, is such a tiny possibility it's negligible.
Anything is possible, but
"when do the coincidences stack up to make the alternate theory (not Q) unlikely in the extreme.?
what would be the point of LARPING Q?
remember "AJ fraud claimed the "orginal Q" was gone years ago and that he proved it by studying "q's language.
People believe any bullshit, especially form evil clown "Alex Jones Hicks"
At some point you have to realize these people are jealous and likely also frightened, since "Q coming back is their worst nightmare.