Healers SHOULD:

1. Heal
2. Manage Threat.
3. Manage Mana.

Healers CAN:

1. DPS
2. CC
3. Text their GF and call it lag.

O wate, SCH doesn't worry as much about mana or hate, so DPS'ing is easier? Novel idea. But they're the same, right?

You're not distinguishing challenging content from trivial content.

And for you're basic healer looking for advice, telling them to DPS as a priority is crap advice.

If you're talking about fresh endgame healers, then this has slight relevance, thats it.

But implying some skill/awesomesauce for healers DPS'ing during weak/farmed content? C'mon.