Guild Wars 2

A program called GemFX I was wondering if I used that program could I be banned?

I can’t believe WP is still around…
Anyways: I have no idea what the program does, but if he uses it (and talks about it) than I would assume it is safe since Anet pays close attention to him.

I think you missed the rest of the video because he talked about how the devs already know about that one and the predecessor that allows for better anti aliasing and how they like the idea of people using them to improve their experiences in Tyria.