Since Area51 is still down. I use the ticket system...
Would be great if you could add some events in ucp_main.php for the topic_lists (announcements, bookmarks, etc.).
I'm converting a mod to an extension to allow users to post anonymous. So I need to overwrite the usernames of posting. I suggest event triggering e.g. before the assign_block_vars at 'topicrow' and 'forum_row'
thanks and regards