Ignore List 
This is a list of users you wish to ignore. To add a user to your ignore list, go to your User CP and in the left Nav Panel under Miscellaneous, select [Buddy / Ignore Lists], type the username you wish to ignore in the Ignore List blank and click [Update Ignore List]

Posts from users that you are ignoring are hidden from view when logged into the forums.
User Contributed Notes: Ignore List