Would you like an in-game parser?

[KonOkami]

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Even with a personal parser the information will be out there and whoever wants to improve will have the tools to do so, easier than he/she can now. All they have to do is ask around or look up guides which will undoubtedly include that if it's implemented. What a group parser does is not tell you how you are doing but tell everyone how you are doing. And the ones that do so badly that they're nowhere near "Average" play can be spotted and singled out in casual content easily where you're much more relaxed than Ex/Savage that requires a different kind of focus. Group parsing in that content will only help in highlighting those people that perform slightly worse than they could.
Again, I'm not saying all instances of group parsing is bad, on the contrary it's a very useful tool, but that it should be implemented under a set of specific conditions like premade groups.

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Yeah, but if they have the personal parser and still don't care what is gonna magically change their mind and they'll start to care if that's a group parse? They already know their performance is shit and just wanna leech from you. A group parse won't change that. It will just justify kicking them from the party for those that feel bad to do so without something concrete(and they should be kicked with or without parser). Again, not talking about the people putting an effort, trying advise given to them and still not attaining "godlike" performances, talking about those people with horrible performance that show no indication of wanting to better it to at least average.
Also if you read my earlier posts our suggestion is exactly the same. Optional parser in premades(+hideable personal parser everywhere imo)

[Reisui]

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I've been through your previous posts, and indeed this seems the most fair way of handling.
Let's hope the ones against will warm to this idea, and hope that SE implements it some day