It's interesting that FF14 doesn't have any official parsers or facilitate add-ons to prevent players from shaming others over dps... yet we have threads like this and plenty of comments on numbers, both on forums and ingame.

The average player is at a disadvantage really. They don't use Act. There is no visual indicator that their dps is good or bad or whether their rotation is off. In the open world soloing it's hard to see a difference between 3.9k and 5k dps, you might still burst well and things still die fast so you can't tell if you're underperforming or by how much. Then one day you step into your first savage content and do terrible and get told you suck and have no idea why.