My last fort had an amazing way of dealing with gobs though
I embarked right next to a volcano, and made it so the only way in was a 50 story staircase down the outer ring of the volcano, followed by a 45 story staircase back near the top.
After the 45 story staircase, I had a pressure plate that opened a hatch above both staircases, quickly dropping a load of magma down each shaft, and a grate at the bottom for the magma to go through.
It essentially acted like a flash melt on entire waves of gobs, aside from the dick that set off the pressure plate. And it collected all of the loot at the bottom.
And it had smoke stacks on top of the staircases for the smoke of burning gob flesh
it was glorious