I've been using the Recursion Tracker for a bit now, and have found the pair of sounds that depresses me the most: "Welcome to PlanetSide" immediately followed by "Rage Quit!". Of course, hearing "Pizza Delivery!" immediately followed by 8 kill dings cheers me right up!
I don't use recursion anymore, but when I kill BR1-5 player, I try to propose my help if they need any advices.
What really bugs me is that why new players don't stay on Koltyr. It makes me think that most of BR1s that I kill are just someone's alts.