When I did a large world, it put me inside the block, so this might be an advantage in runs. Should this be banned?

What run first off, in most cases it won't really matter

idk if this is useful for speedruns but you can jump then press enter in midair and it saves the location. if you jump and immediately press R then enter it saves your location higher. You can repeat the process to get more and more height.

There are 2 rules against that no teleporting and no glitches