I didn't say people would be nice, just that there's no reason whatsoever that square's rules about harassment and griefing in party chat would change. People already kick others for bad DPS because they have act. The only people who can't do this is are PS4 players. And a lot of them raid with people who DO have ACT. There's all this fear about people suddenly becoming incredibly toxic or something but thing is that people are already being kicked for bad DPS, they just don't know WHY they've been kicked, or the party leader lies to them to be nice about it.
EDIT: if you don't care about your DPS as a DPS main, having an in game parser won't change that. Folks who don't care will not want to improve overnight. But an in-game parser will be an invaluable resource for PS4 players who DO want to improve. Yeah, you have people who will abuse an ingame parser, but the presence of a parser will not automatically turn nice people into "toxic elitists" or whatever you people call them... if someone is being an arse without a parser, chances are that they'll still be an arse if they get an in game parser.
I've just seen a lot of fear mongering in this thread with no evidence of their claims.
On a personal note, I have seen multiple screenshots of people without a parser being "toxic" in party chat. Like 4k samurais asking why they're hitting enrage on a boss. I've also been in parties with ninjas who trick on the first gcd and don't use shadewalker blame the party for "bad dps"
I must admit that a vindictive part of me would love it if these people could see their own DPS. Mind you I doubt they'll actually go learn their jobs, but at least I wouldn't have to deal with their whining if we wipe in a clear party.
