While I don't support using parse data to contribute to a toxic environment, many, many players are not particularly skilled at maximizing their DPS and could benefit from a tool that provides metrics so that they could choose to compare data with their peers and make improvements.

Requirements are so minimal for most content that it's a very rude awakening for players when they attempt end-game content. It's not immediately obvious that their playstyle is what needs fixing and to what degree. I'm pretty sure that most of those sub-400 melee DPS in T10 with 10% Echo think that they're doing okay because they don't know any differently.