Because if the onion goes down, so does your site. Because the onion can take the link down just to mess with you. Because the onion gets owned, or feels like i

Because if the onion goes down, so does your site. Because the onion can take the link down just to mess with you. Because the onion gets owned, or feels like it, they can have "fun" with your users and your site. Edit: its only a bad idea if you care about the integrity of your site, for something like this it probably doesn't matter.