I've never asked what the word is for when one wants to use a topic or event as a jumping-off point in discussion, vs discussing the topic or event itself.
I've never needed to, because you all know when each applies to a post. I don't know the word, and I've never needed the word, and that's all thanks to my lj friends.
Thank you, all of you, for being so brilliant and great, so friendly and wise, for just being you!
(and, most of all, thank you for putting up with me)