Blogs have a way of keeping track of who is linking to them using trackbacks or pingbacks. It’s a good idea in theory because it helps you follow the discussion as it spreads to new areas, but in practice it is mostly filled with spam because getting a well-placed trackback on a popular website can be a good source of traffic.
Trackbacks were designed without any kind of authentication mechanism whatsoever, not even the most trivial test that the person who is says they are linking to you really is linking to you. So screw spammy trackbacks. Screw them in their naughty place. Take them out of your blog themes and blog engines and let’s build something better.
Here’s the idea: instead of showing a list of trackbacks for spammers to abuse, show a list of referrers.