Factorio Forums

Not too sure if this is intentional, but Mines don't trigger any biters when, meaning you can just spam their bases full and they won't care even if everything blows up (in peaceful mode you can just walk into their base, place mines, and watch)

That is because you are technically indirectly killing the biters. It is not an active attack, like a turret or gun is, because the biters have to trigger the mines themselves.