I personally prefer it when new topic titles are being displayed in bold letters (forum view) just like the main forum software competitor is doing it.
What do you think about it?

I really see no point since IPB already marks threads with new posts with a new posts icon and the go to first unread post icon, I know this was a mod for IPB 2, so it should be released for 3 eventually.

I personally don't like the bold titles.