I know that some do check traps daily, and that is actually required by law in some parts, but bad trappers do exist and a bad trapper can cause a lot of suffering. Traps are also somewhat indiscriminate in what they catch. You can set a certain type of trap for a certain type of animal and most of the time it will work, but when something big gets a leg caught in a full body trap meant for a smaller animal it's not pretty. I also agree that traps like beaver traps that are underwater and drown the animal are probably the best, then the animal is only in pain for as long as it can hold it's breath.I do have to disagree somewhat with some of the comments on trappers and their lack of frequent checking of their traps.
Understand and agree to a point. I was raised in a family of hunters where you are taught to always be sure of what you are shooting at and what is behind it, don't pull the trigger if you are not 100% sure. You can never be anywhere close to that sure with a trap, it just weirds me out to set a trap and walk away without knowing if something is in the trap and hurting or not.If we are talking about inflicting suffering, I'm sure we've all seen wildlife shows where the predator captures it's prey and eats it alive, tearing it's abdomen open. There is no humane instant death going on there.
It's incorrect to paint all trappers and hunters with such broad strokes. How can anyone know how each trapper operates? It can only be generalized by assumption and colored in by existing biases.
I tend to think that if it's your livelihood you will err on the side of doing things correctly. Yes, when humanity is involved you'll get a spectrum of behaviors, but I for one am weary of focusing on a few negatives and throwing out the good with the bad.