Yeah I used to use a self autoit script along with wow macros, but ever since they removed /follow in bgs that stopped working. I never got detected using that despite people reporting me afk often.
I notice bg buddy has pretty smart ai, and no one can even tell its a bot. The Mage rotations/routines the bot uses is pretty good. Does blizzard pick it up through warden in contrast to player reports?
Also I only queue AV where it's easier to blend in.