Function: Loop through queried metabox users, and output links to their avatars

Function: See who is subscribed to a topic

Function: See who is subscribed to a forum

Function: See who marked a topic as a favorite

Function: Moderator assignment meta-box

Function: See who engaged with a topic

Function: Reply meta-box

Function: Output the topic replies meta-box

Function: Anonymous user information meta-box

Function: Forum meta-box