What is the purpose of a pincher bug?

Question

What is the purpose of a pincher bug?

Answer 1

"Male stag beetles use their jaws to wrestle each other for favoured mating sites"

"The larvae feed for several years on rotting wood"

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Answer 2

Depends on what you mean by a pincher bug, but I'm going to assume you're talking about Earwigs (members of the order Dermaptera). While, contrary to popular belief, not every creature has a known, distinct purpose Earwigs can be beneficial by keeping pest populations down in gardens and sometimes keeping levels of garbage down. They can also sometimes be a slight problem because they do eat certain live plants, but they usually do not do enough damage to be considered an actual pest. Earwigs are not usually aggressive except when protecting their nest and they actually take care of their young, unlike the majority of insects. Basically, they can be good, they can be annoying, but for the most part if you mind your own business they'll do the same.