Please don't do this - this is not what the ping system is meant for and I don't like gaming the system in that way. Part of why I like that there is no way to notify users you want to answer your questions about them is that this makes ignoring a question an easy and fully neutral option - no one knows if you even read it, but if you get pinged about it then even to ignore it conveys a message to the poster of the question, which creates a certain amount of pressure.

@AndrewRalon: You also get rep for answering questions.

Note that the answer has been edited and the problem fixed.

Closing as duplicate only works within a site, for some reason.

SE has very strange views on what users need to be notified about.