Tanks, please use buffs

[Ksenia]

Every tank should tank the exact same way. Letter for letter, click for click.
Every healer should heal in the exact same way, letter for litter, click for click
Every dps should play in the exact same way, letter for letter, click for click.

That will make the game... less boring?

[Spiroglyph]

Every tank should tank the exact same way. Letter for letter, click for click.
Every healer should heal in the exact same way, letter for litter, click for click
Every dps should play in the exact same way, letter for letter, click for click.

That will make the game... less boring?

Should we perform badly just for the sake of variety, then?
Note that OP isn't asking for tanks to use them in any specific order or how to stack or not stack them and whatnot - they're asking that tanks simply USE them.
Their role is to get punched in the gut several times until the rest of the team manages to kill the offender, it's common sense that they'd try to make the hits hurt less, no?

[Nestama]

Every dps should play in the exact same way, letter for letter, click for click.

That will make the game... less boring?

Do you really want a RDM to hardcast Thunder and Aero and never use Jolt, Impact and Fire/Stone? or a Tier III Mage? a Boot Shiner?