WordPress being the largest blogging platform, I have no doubts that each and everyone of those using WP updated once to several times their ping list from the settings menu. Basically, this whole pinging stuff what it does?
Whenever you publish a new post, automatically sends a notice to bots, crawlers and so on with a “Hey, here’s something new!!” message.
Fron now on you don’t have to worry about. There is an excellent plugin, named Ping List Pro, which is a plugin/service that completely removes the need to update your pinglist, and does so automatically.
For only $1,99/month, get this plugin TODAY!