If you feel remorseful about self-posting, you can do what jacquesm did in his post about his experience dealing with VC's (great post by the way). He just put the whole thing here.
Typically I don't even notice who posted it to HN unless I've really liked the post and never seen that domain before (and thus wanted to learn as much about that new-to-me site as possible), so I can't say I personally have any feelings on others who self post.
Relying on a small community on some of my blogs to post things I think will be of interest here at HN isn't effective, either.
I like getting as much input and conversation around my posts and posts of my contributors as possible. I view Hacker News as a way to bring new eyeballs in to deserving contributors (the same way I view Reddit and Y!Buzz, depending on the type of post it is).
As an editor of a group blog, I view part of my job is hunting down and finding the right audience for my contributors, and thus have little compunctions posting stuff from my blog that others wrote, as long as I think it has a shot at appealing to the community here.
