Since a few weeks spammers are back posting a bulk of messages, clogging up the forum.
If one goes through the forum manually it's mostly only one post per forum/subforum and can be easely ignored.
However, if the "unread content" option is used, the entire bulk of spam messages shows up, message after message in the unread content list.
This happens also when I add the spam poster to my ignore list.
Members that are put in the ignore list should not show up in the unread content list adding an extra filter to all the spam messages they post.