If we're talking about just using em-dashes and ellipses, yeah. But there are tells, like em-dashes or ellipses in... weird spots, where a human would never use them. Anyways, they also use "anyways" after not going on tangents all the time—and they have an unquenchable thirst for ending a passage with a pithy one-liner.
They haven't beaten the Turing test yet.