It would appear that there are not many people in the OPML game at wordpress.com or they don't post anything to do with OPML to the category/tag OPML.
When you look at http://wordpress.com/tag/opml/ there are three of us, Kosso, Almost A Blog and Myself. Of course Dave is there with the Scripting News WordPress blog, though even he only has one post tagged OPML and a few other blogs have an OPML tag such as Scobleizer from over a month ago. There are a couple of other blogs that mention OPML though they don't seem to use OPML or the OPML Editor. I am definitely not saying that the OPML Editor is going to be everyone's cup of tea as the blogging tool of choice when posting to Wordpress. I am getting at the fact that I thought that there were more of us in this space than there actually is. I thought Tom had a WordPress blog, maybe not.
@Stephen
Nice site lots of info here! Thanks for the link, and the visit. OPML fever on!
Almost A Blog
I do have a WordPress blog, and a wordpress.com account. I just don’t use it because I prefer OPML-style blogging, without titles and so on.