‘Hey, I’m over here!’ ‘No, too slow, now I’m over here!’ ‘Ha! Now I’m over here, and there, and everywhere, including right behind you with a big knife!’ Oh, what a cheeky, irritating scamp teleportation would make you. Except that once again, but for slightly different reasons this time, it wouldn’t make you that at all. Because theoretically, teleportation doesn’t move you around.
If we’re going to subscribe to the general gist of Star Trek transporter technology (and the vague method agreed upon by actual science), teleportation doesn’t move you through space as much as it rips you apart, atom by atom, and rebuilds a replica somewhere else. Effectively, you’re killing and cloning yourself each and every time you jump. Dishonored’s Corvo gets a free pass, as his Blink ability is actually more of a rapid warping movement than a true teleport. But Dhalsim, M. Bison, and those Translocator-using, telefrag-jockies from Unreal Tournament? All dead, a million times over. In a very brief, but probably nightmarishly excruciating way.