Nothing constructive is a really strong statement that goes against my direct experience seeing how it has helped members of FCs I've been a part of improve in a very positive and encouraging atmosphere. I would not be satisfied with a dumbed down version... All it would do is mean people will still run outside parsers to get a full picture and pretty much not fix the harassment issue that seems to be the biggest concern (at least for the vocal anti parsers).
As for handling those not mature enough to use it without harassing others, I have no issues ostracizing them from my gaming circle or removing myself from thiers. This goes for harassment beyond just parsers too. I suggest others take a similar approach if dealing with the immaturaty of a section of the player base is wearing on you.