I was just asked by the members on my board about this too.
Having it so you could choose to not see posts from certain users would be awesome. An ignore button under each users Avatar profile pic on their posts to the board would be perfect. (Or some kind of link)
In the messages from users you are ignoring, it would say "You are ignoring this user... You could CLICK HERE to read this post anyway if you want..." and then open the post in a new small pop up window if you choose to read it.
I will be following this thread closely. Hope someone could look into this... (Thanks to anyone who gets into it!)
Mike