Devs, here's how to ACTUALLY stop speed running.

[Dotsusama]

Some kind of stacking debuff on the tank or buff on monsters would solve it without necessarily nerfing threat generation (which does NOT need to be nerfed). The more enemies hitting the tank = they all get a teamwork buff and eventually we can't heal through it.

I am in favor of this. It's kind of like giving mobs a version of the Echo. That way a party with better gear, more levels, and sharper skills can still risk it if they really want to try, but at some point it WILL overwhelm their ability to absorb the damage and thus it throttles their progress.