: )
Ping lists are easy.
Just create a text file, in some word processing program or simple text editor.
When a poster wants to be on the PING LIST, just cut and paste their SCREENNAME into whatever text file you started.
Put a semicolon between each username. You can use commas instead, but then you can't leave any 'blanks' in their name. So stick to semicolons.
When you create a new thread, after you post it, click on any of the posts (yours will be number 1, that's easiest to use), and for the TO: field, simply go back to the text file you made and saved, and CUT the string of SCREENNAMES and then PASTE them into the TO: FIELD. That's all there is to it.