Why can't we have the ability to create accurate Parser?

[Mykll]

Parsers bring transparency to DPS players actions in a group, making their mistakes as obvious as the tank or the healer ones. And people are afraid of that, of course.

No. We don't want another tool for trolling and griefing. If WoW (and other games with a parser) has proven to us that it will overwhelmingly be used as a teaching tool, to better the game, etc. then we would not have a problem. But that will not be the majority of its use. Its the exact same thing LotA. Or when you do a lower level roulette and get a brand new tank or someone. Remember the attitudes the WEEK of LotA release? Just 2 days after release? A lot of raging towards anyone new not knowing the fights when it just came out. Nobody wanting to wait for explanations, and then rage when something goes wrong. Same thing for watching cutscenes. Nobody wants you to do that, so you can play the game THEIR way, and not drag or slow THEM down. Party Finder comments and attitudes? Will just be another tool to grief, separate, and a number of other things. It will just be something else that will be used for harassment. This isn't WoW, but WoW taught us how the anonymous internet users will use it.

And how are tank and healer mistakes so obvious? Tank loses agro. Did DPS not follow markings? Did the healer spam heal when it wasn't needed and got agro? Nobody on same page as far as sleeping, aoes, etc? Did tank just not use enmity abilities?