Yes but I was actually responding to someone's SETI screen name. I was thinking of someone transmitting from a planet with the intention of being found by a SETI somewhere else. Either that or just stray communications from another planet that we would happen to pick up. This is what SETI is all about yet it isn't finding anything.
Hasn't found anything so far, you mean. But we've only just started to look; if we'd found something by now, it would surely mean that extraterrestrial civilizations are overwhelmingly abundant throughout the galaxy.
A planet like Earth we'd be able to see clear across the galaxy, if we happened to look in the right direction.