In a recent interview, Yoshida explained that they have no plans to ever introduce a dps meter, because they are worried it would incite conflicts between players.
That aside, I have an honest question:
How does the dev team expect players to learn how to dps effectively? It's well and good that they want to someday introduce a training dummy that you have to pass "dps check" in order to "kill", but will this really give solid information on how a dps can better play their role? It won't tell you if you're missing too much in Binding Coil, or Second Coil, or Primals, or anything. Missing is kind of a big deal. It would be nice to at least know the ACC caps for everything. Maybe see your own dps (AS WELL AS the median dps of the party, or the expected average you need to get going in order to beat the content). I mean, I'd rather a real dps meter, but some kind of meaningful information would be nice.
How would you know how much damage you're doing? If you're doing less well than others? If you're missing or not? It's interesting for Yoshida to praise folks for figuring out this or that about whether or not a particular build is effective, but really there's no way for them to do that without a parser. Well, certainly not efficiently. One has to imagine most of these folks aren't just writing down every attack and adding it up, especially with the amount of attacks needed to really figure anything out.
I understand about not wanting to incite conflict between players, but honestly that will happen anyway. Ignoring the positives in an attempt to shut out ALL negatives will still result in negatives, because nothing is going to be perfect. Instead we should strive for what makes the most sense.
There are definitely going to be people with i100 or even i110 average gear who are still doing less dps than someone who is in i80 gear but knows what they're doing. How would they even know they are doing poorly? A lot of these folks are simply going to think they are amazing, and are going to drag down any party where the focus of the content requires any kind of a dps check.
Will this not in itself incite conflicts? As folks cast about to blame whoever is not doing enough dps without even knowing who isn't pulling their weight?