I don't quite understand the hate towards parsers. No one would care much about parser if the game didn't have DPS check. The game is designed for people to perform perfect rotations not 3 not 4 members in the party but almost every player (Tank and healer DPS is a thing to take into account now) has to do the perfect rotation.

I have hardly heard about anyone using parsers outside pre-mades such as Savage or farming groups. Why should people carry those who are bad and can't perform? For the very least I am not entitled to waste my time on people who aren't trying hard to get good at their classes especially when one person can ruin the efforts of the rest 7 players. 50 less DPS from general is not an issue while 100 less DPS might be due to simple slips but lets face it 200 less DPS is something that should never happen.

To sum it up, as long we have DPS checks we're gonna need all party members to perform perfect rotations and thus parsers are important and will be used.