If you were to spend one minute each debunking each clueless kook out there on the Internet, you'll die of old age without exhausting all of the kooks. Meanwhile, the obituary would read, "This person was devoted to kooks."
On the other hand, when a business or a government is adapting policies based on kookiness, then is the time to stand up and counter the kookiness.
And remember: 96.32357% of all statistics are made up.