How do you know? In a raid with 7 other people, how do you KNOW that YOU are the one that is improving overall DPS? I'm not talking about a training dummy, anyone can hit a basic rotation, but how do you KNOW that in an actual raid you are not losing DPS during mechanics and others are not just picking up your slack. Here I will answer this for you, you don't know.
This is exactly where the problem is, there are MANY MANY players who think they are doing absolutely fine when they are not. This is why a parser is an excellent tool to see how well you stack up with other people.
First point, this game isn't the same as those, all classes are pretty well balanced at their role and are interchangable the only issues HUGE issues I see in class balance right now are between the tanks and this ONLY matters for savage, which is a different ball park you SHOULD be aiming for the top doing end game.
The second point, again if you are not doing end game raids, no one is really going to care if you aren't pulling your max potential DPS, as long as DF groups don't fail no one really gives a crap, sure I facepalm at people who do sub 500 in A4 with eso gear but if the raid goes down I just don't bother saying a word, if they could see their own numbers maybe they will take it upon themselves to say hey I could do better.
You are correct you don't need to be doing stuff wrong, but it is impossible to know if any of the changes you make to your rotation or the things you change during a raid have ANY effect what-so-ever on your own personal DPS. A parser breaks down this information and is an excellent evaluation tool.
Well the first part is just nonsense and if you think that a raid dying faster is proof you personally are better then I have no idea what to say, it does NOT show YOU are better, it shows the group overall was better but having a parser can help a group improve drastically. If you think the battlelog is a valid way to see overall DPS then I have no idea what to even say to that, you expect players to go through the entire groups battlelog and add up the damage after a raid? Rather than use a parser for that information with a better breakdown? You need the overall DPS output not how much a certain attack hit for.
No one said you can't play this game without a parser, what a lot of people are saying is that a parser is a fantastic tool to help players improve and some of us like myself use it as a mini game during DF. I'll just always try to beat my own personal best and be the top DPS in the group, i don't go bragging about it after, I just like to have something to keep me more engaged in the fight. Same with my static I want to beat the crap out of my friends DPS, and when all of us are doing the same the overall group improves and it just adds an extra layer of fun.
Now you're going right into what most people are afraid of, the fact that if they have low DPS they can be kicked and sorry but there are a LOT of people using parsers even now, and they can just kick someone without saying a word if they see someone doing pathetic DPS, but that just doesn't happen often because in places where even if the DPS is low you can still clear it, no one really cares. They just down it and move on. Sure you will get your occasional asshole who does that but are you really going to keep an informative evaluation tool out of the hands of the entire community because some people are assholes? However what really annoys me is that tanks get chewed out for not holding aggro and can be kicked, healers get chewed out for not healing and wil be kicked, people who fail mechanics are kicked, but no one calls someone an asshole for this, but calling a DPS class out for doing no DPS even though they have the gear? THAT'S OUTRAGEOUS. Where did this sense of self entitlement come from with DPS classes?
Someone with high DPS can be a cause for wipes absolutely but that is not what we are talking about here, someone with high DPS through an entire raid generally has a good grasp on the mechanics due to the fact that if they can keep their DPS up even while dealing with mechanics it means they fully understand how to optimise and get the best out of the class during all parts of the raid. No one is saying they cant make a mistake though.
How do they even know they need to improve?! If they are in Alex DF and it dies every time they can assume they are doing fine, but they might be doing pretty shitty or just 'ok' DPS. If they want to improve they need information and feedback to show what they did during the raid.
You think it will create exclusion, I think it'll just cause players to actually take into account what they do and at least improve to the standard they need for the DF groups, once they reach that standard (which is low for DF) then they can choose to improve or not, no one is gonna get kicked if a raid dies even if you are doing sub-par DPS. Players booting new players are just assholes parser or not, these people are not the majority and if they are then a parser isnt the problem, the community is.
Yes I can, you can learn a basic rotation in game with no problems. For an optimal rotation and buff use you need parser information to show if what you just changed in your rotation was a DPS increase or decrease, this is how all the openers were done for the classes, and how the rotations were perfected and how stat weights were calculated. Without the parser we are just working from what we THINK is the best rotation, not what we KNOW. How fast a mob dies doesn't tell you WHO is doing more DPS during a raid, unless you're talking about a solo mob in the world which is just ridiculous to even suggest for DPS evaluation.