Seems when you add someone to the ignorelist, it does not display a post from that poster on any page. 
This poses a problem when viewing newest posts as there is no post marker on the page to go to and when viewing the latest post for a thread the page remains at the top of the page rather than even going down to a post realtive to where you last viewed the thread.
I don't know if this is something to do with the new version of vBulletin, or a hack to the system, but other forums show a marker for the deleted post that the page goes down to so you can see that a post is not displayed and go to the latest post.
Someone may want to look into that as it makes it difficult for using the ignorelist feature and still try to view the forums with the "View First Unread" link or
icon from the forums index.

This poses a problem when viewing newest posts as there is no post marker on the page to go to and when viewing the latest post for a thread the page remains at the top of the page rather than even going down to a post realtive to where you last viewed the thread.
I don't know if this is something to do with the new version of vBulletin, or a hack to the system, but other forums show a marker for the deleted post that the page goes down to so you can see that a post is not displayed and go to the latest post.
Someone may want to look into that as it makes it difficult for using the ignorelist feature and still try to view the forums with the "View First Unread" link or
