People who ignore their threat guage

[Kabooa]

Um when it's a dps who does good damage but still button mashes it's a problem. Plus in certain early dungeons where you only have flash+2 hit combo on gld/pld it turns into a yo yo war of enmity while you are waiting for hit 2 and/or flash to be up against some dps (I've tested this extensively by hawkeyeing the enmity guage and there is literally nothing more you can do than using flash with your 2 hit combo)

Early levels, anyone can tank. Losing threat there is rarely an issue.

Max levels, you have every single tool you need to hold threat unless you are severely outgeared. In that case, odds are the DPS pulling off you are geared enough to act as pseduo-tanks, so it's rarely an issue there.

In short: Calm your tits.