It all falls under the umbrella of "dragging mobs with AoE to intentionally damage or kill campers". Such as what Havoc is wont to do at Mordris.Are you kidding? How does killing surrounding mobs while camping constitute a grief? Just don't attack the mobs and you wont get aggro.
You don't need to attack mobs to get AoE damage by a troll. A couple of furious sweeps can kill rogues lockers that are usually low on hp.
Even if they don't die, not everyone has sigils to get back to full health, so they sometimes have to use restore pots (unnecessarily). Or when they die, they use an idol have a Curse of the Fallen.
So folks are forced to use plat items, in addition if/when Snorri spawns and they're half health and die and gets an idol-timer for 30 seconds. Advantage griefers.
Please stay on topic of killing mobs at snorri Ail.