That guy is "multiboxing" and not actually breaking anything. For every character, he has a unique client running. It's extremely dumb. He would need several accounts to do this, too. His PC(s?) are probably on fire, but this is genuinely harmless since he's just standing there. Annoying, but it's not any different than the sweepers in Lamia's Ul'dah and Grid or the dancing Lalafell in Marlboro's Limsa. Just goofy idling.

I think it only feels uncomfortable because its a Roe in that glam.