Why mark targets?

[Bridgeburner]

because people do not know how to read these

Because those aren't readable without manually clicking off to every target, which interferes with the ability to deliver skills on GCD to your primary target.

Also, your second graphic is actually showing the health bars of the enemies remaining on the field - not the threat. In the pic:

Top Shade Seeker is T; full health, full bar
Middle Shade Seeker is R; partial health gone, partial bar, to scale.
Bottom Shade SEeker is Q; full health, full bar
Clam is S; partial health, partial bar, to scale.

People like marks because many tanks don't Flash regularly enough to keep AOE threat established. No good DPS wants to overrun the tank.

[CyanDvai]

Also, your second graphic is actually showing the health bars of the enemies remaining on the field - not the threat. In the pic:

The health bar of the mobs in the pack is also a good indicator of which mob is being focused on, if you're on a mob with most of it's health and you see one whose health is draining faster, most likely all the other people in your group are attacking that one and you may want to consider switching.

[Langureion]

So this thread is about bad tank player or marking? O_o;

[Alistaire]

So this thread is about bad tank player or marking? O_o;

It can't be both?

[baopee]

Because those aren't readable without manually clicking off to every target, which interferes with the ability to deliver skills on GCD to your primary target.

Also, your second graphic is actually showing the health bars of the enemies remaining on the field - not the threat. In the pic:

Top Shade Seeker is T; full health, full bar
Middle Shade Seeker is R; partial health gone, partial bar, to scale.
Bottom Shade SEeker is Q; full health, full bar
Clam is S; partial health, partial bar, to scale.

People like marks because many tanks don't Flash regularly enough to keep AOE threat established. No good DPS wants to overrun the tank.

what i meant to show on the second picture was the enmity indicator, the bubbles before the HP bar of the mobs.

[Bridgeburner]

what i meant to show on the second picture was the enmity indicator, the bubbles before the HP bar of the mobs.

You can see the limits to the utility in this picture, too, though.

A solid red orb means you have threat, but by the time that orb changes to a red triangle, you're typically already losing the monster's focus.

Additionally, as demonstrated in this picture, you only get those floating health/threat indicators on enemies you've attacked. This picture shows the Princess and two Soldiers, but the threat/health indicators are only showing two of the three targets. (The person taking the photo has not interacted with/done damage to/established threat on the 3rd target, thus no indicator.)

... out of curiosity, why's the DPS fighting Soldiers in Cutter's Cry? Usually Heals secure aggro and sprint 'round the outside to let everybody focus the Princess down, no?

[Mailstrum]

Also, your second graphic is actually showing the health bars of the enemies remaining on the field - not the threat. In the pic:

actuallly his second picture does show threat Red yellow Green dots. If the Dots are green means you do not have agro.. if the dots are yellow that means you are getting close to pulling agro....and if they are red you have agro..... and they gradually change. So yellow doesnt go from bright yellow to red. It goes Yellow to yellow orange even darker yellow orange then red.

and they change shape as well for color blind people.

[warren-ragnarok]

Because those aren't readable without manually clicking off to every target, which interferes with the ability to deliver skills on GCD to your primary target.

Also, your second graphic is actually showing the health bars of the enemies remaining on the field - not the threat. In the pic

Those little markers to the LEFT of their HP is the enmity markers,

Oh and the reason for marking isnt just for enmity control, although thats usually the one thrown around most frequent, in cases of groups of 3-4 mobs (assuming tank isnt super geared) it tells the dps which to focus down, and by order of logic, mob dies, tank takes less damage, healer spams less, healer gets less enmity....and if the healer is poorly geared, healer wont oom as easily......
yes dots are effective, and may take down targets faster, but not all classes have easy to get to dots, and may have more soon with the same issue
green means little to no threat
yellow means medium
orange-red means alot of threat, danger of taking
flashing red means you got the HIGHEST threat

The more you know

[AniCelestine]

Also, your second graphic is actually showing the health bars of the enemies remaining on the field - not the threat.

Well, I at least have the red square, yellow thing, green things( can't remember which are which shapes) which indicates if I have the aggro of the monster or not(red= I have aggro, orange/yellow I'm nearly having the aggro, green = I'm nowhere near of having the aggro) but that's what I use more on a AoE dps so I know can I throw another AoE or should I do 1v1 skills on some monster. But the pic looks odd to me, since the red marks aren't squares, the are more of a lines <.<