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Thanks for the welcome. You know, idiots are everywhere. But this is the best discussion forum I have seen on the internet. I see that some very intelligent people write here. And the humor can be amazing!

I have to admit that I don't know what "ping" is and how to ping someone.

The ping is a post to someone to bring their attention to an article or a comment. You will meet the "King of Ping" JohnHuang2, who keeps lists of folks interested in certain topics. I think that the Robinsons (owners of the site) are preparing a user-preference for ping lists. It can be a mess, since some of these are hyper-active, but it's useful if you have a specific interest.

Among the amazing things about this site is the interface. Its the slickest, easiest to see and use forum around. The changes and evolutions have almost all been to the better without losing the good. In so many ways, the accomplishment here is singular on the web.