Would you like an in-game parser?

[Kaurie]

I've seen a blm new to a12n get kicked for doing 1500 instead of 1800, been harassed because I missed one or two KassAtsu's in a10n while keeping TA on CD and managing my buffs and dots appropriately, and saw a bard being kicked for using mage Ballad to help the low MP healers during a nondps check phase in a11n. It happens. You may not see it, but it happens.

OK, but two of your three examples are not DPS # related, which drives the point home that a parser isn't the cause of people behaving this way. People will kick and be ridiculous with or without a parser.