[maccard]

> For hacks that don't access program memory directly, would external hardware make things less detectable?

Yes. But, it's a game of cat and mouse. Anticheat always is. There's not been a need go to the level of "there are X players who report having a Razer deathadder, which we've validated as having a DPI range of Y-Z. With your OS settings, it's not possible to have achieved that with that mouse therefore we suspect you of cheating". But we're probably there now.

> More likely they work with heuristics that try to detect super-human mouse movements, precision/speed-wise.

It's heurestics all the way down. You're unlikely to be banned for AHK+OBS, but a heurestic on what you're doing with the combo might ban you.