When another blog links to yours, WordPress automatically receive a pingback. This is cool because you are notified about it, but pingback don’t really add value to your posts. Considering that fact, what about getting rid of them?
First of it all, login to your phpmyadmin and select your WordPress database. Once done, click on the sql button to open the sql command window.
Paste the following sql command in the sql window:
UPDATE `wp_posts` SET ping_status="closed";
That’s all! Now, pingbacks will not bother you anymore!
Thanks to Ozh for this simple, but very interesting tip.