Why bother answering?

When people like "coon killer" or others that purposely post questions that are clearly racist or other dumb questions, why not just ignore them completely? I know when answering, you sometimes are subjected to reading these idiots answers, but you don't have to respond. It only adds fuel to their fire. They are looking to stir up trouble and everyone is all too willing to accommodate them. It's like a bully, if you ignore them, they eventually go away. Yes, you could report them, their account gets deleted, then they resurface with another name and account. On some occasions they resurface with the same exact name. Ignore them people... let's band together and wipe out Ignorance....LOL