It looks like Wikipedia starts listing SEO's... I don't know what to think about this.
For example, Matt Cutts isn't techincally an SEO... perhaps he could be called the 'SEO police / Sheriff' :)
Bruce and Jill both own SEO firms, They are missing Aaron Wall and Chris Ridings from SearchGuild from that list.. (something that I would of had listed up there)
I thought it's worth a discussion.
Someone needs to clean up that Wiki Article.