I've been in the hobby since November and this already drives me nuts.I'm sure it's been a problem since repeaters came to life. I hear somebody on my club's main repeater almost every morning, sometimes 10 to 15 times a morning keying up our repeater and then never saying a word. I get that some people don't want to get stuck in a 45 minute rag chew, but unless the Op calling you back knows you that's probably not going to happen anyway. I'm lucky my club has a second repeater so I can just change freqs. How do you know if your rig actually works by keying up the repeater 10 times and never saying a word? Keep 2 meters alive!