How does SE justify these ten min enrages, but doesnt let anyone know their dps

[Reynhart]

Beating on a dummy for 3 minutes and actually entering a fight--especially one that is mechanic heavy like, say, V3S or V4S--are two entirely different things. I can shoot a dummy all day long. Doesn't necessarily mean I have what it takes to consistently clear V3S or V4S.

If the fight is mechanic heavy, and you fail the mechanics, we don't really care how much DPS you do. You first goal is to properly deal with mechanics. Another problem with parsers, is that people will stare at them, and, at the end of day, will only judge the resulting number, without caring why the number is low. Worse, someone who manage every mechanic correctly, but lack some skills in his rotation or some stuff might do lower damage that a stronger/easier character in the hands of the players that fail every mechanic, and will be the one to be punished because he's "bad".

As for healing requirement, it's not really a problem, and we don't need tools to see if people died or not. But yes, dummies could retaliate regurlarly to give an idea on HP/healing checks. Which, again, doesn't require a parser

A little clarification, though. I know a parser is only a tool, and the more important thing is how people use it. However, if you give them to everyone, nice people will still use it nicely to help people improve, which they probably already does, either by an unofficial parser, or simplye by giving guidelines and advice, but jerkass will have the right to call you out on your number, whatever stupid requirement they arbitrary decide to put on you.