What I'm getting from this Parser Talk is that, while good for a general DPS range, that parser programs have questionable accuracy at best.
That sound to me like a peg for the "don't allow them" camp. But at the same time they do make otherwise invisible data visible to the players.
Add in my experience with Parser users and you find that the programs, like weapons IRL, are dependent on the intent of the user and that while a good many use the information with good or "morally neutral" intent that there are those groups of players that ruin it for every one by abusing their access to that semi-exclusive info.
