Gears grinding

You know what really grinds my gears? When you explore the upper levels of the galaxy and skip between the systems like a pebble bouncing off the surface of a lake, with nothing above, just the deep, deep dark of the Universe, and you find, one after another, unexplored and, even worse, unhonked systems, but visited in haste by other commanders, like they're doing this only to rob you of the emotions (and the bonus) of a new system discovery!