Usually you link to an authority blog and to the relevant news and it’s a good feature to show trackback from other blogs. I won’t call it a bug and neither a feature, when WordPress pings your own domain when you link to old blog post. Showing your own blog posts in trackback doesn’t make much sense. And every-time, you can’t trash such trackback as it might add more into your manual work list.
To get rid of this issue, I’m adding one more plugin to my essential WordPress plugins : No self ping.
As name suggests, No self ping stop you from pinging your own blog. This plugin comes with no configuration option and once installed, it will stop your blog from sending trackback to your own domain.
Though an admin option panel to exclude more domains would be a handy feature, but for now this plugin is what you need if you are tired of your blog sending trackback to same domain.
Do let us know what method you use to stop sending trackback to your own blog? Do you use No self ping WordPress plugin or some other method?