Standardizing/explaining RSS is important. Like bookmarks OPML will also become important. So it is important to talk about it in a uniform way.
Now RSS is not known at all. OPML even less. it will take time, but those already blogging should be part of this move.
Personnally i believe that RSS will never become mainstream. I believe applications/services using RSS. Life offertrax i talked about. Same with OPML