Yep, I know that circuit well

. It's not farmers who are the problem, as it's fair enough that we should share the few mobs available, it's the people skilling up weapons/npcs. Sometimes there'll be a party fighting crawlers too, and someone will come through with an npc and kill anything that moves, shafting everyone else in the process. Usually it's people waiting for someone else to arrive for the escort quest.
I mean, I'm there fighting in my cooking gear, I have a bazaar comment saying I'm skilling up cooking, I have Cursed Soup for sale and I'm ignoring the crawlers - it should be pretty obvious what I'm doing

.