When a Hobgoblin walks into a snare it produces an error (Uncaught TypeError: Cannot read property ‘x’ of undefined). They seemingly take damage from it and can die it does not happen if I manually attack them.
Mayhaps related but I had no snares placed and I got an error when I had 2 Hobgoblins and a bear outside my ‘Base’ while I was inside. I ended with no bear and a dead Hobgoblin and several snares around that I had not placed as well as one in my inventory I had not made.