It seems a lot of questions on Meta Stack Overflow are being prefaced by "Feature Request:" or "Bug:". Should this title labeling be done, or is a duplication of the tagging system?
Titles are not tags. Keep the tags in tag boxes, and stop duplicating them in the title. This is the same convention we have been using on SO.com since adoption.
Do not duplicate tags in the title.
If the tag is naturally part of the title, that's fine, but don't force fit the tags in there.
You're supposed to look at the tags to tell what a question is, anyway -- they provide additional information on top of the title and summary itself.
I think it's unnecessary at best. IMHO, if you need to prefix your title with "Feature Request:", your title needs more work - i should be able to tell. Same with bugs.
Rule of thumb: if it can be worked into a single sentence description of the post itself, then it should be. And if not, then it doesn't belong in the title at all.
I tend to preface a title like that because I think people use the title to work out how to vote and respond on a question, rather than the tags. The tags are a search convenience and I don't think most users review them before voting or providing comments and answers. The question content and its title are the most important when trying to garner responses, not the tags.
There are tags for bug and feature-request. And they are used by Jeff and the mods. I think the rest is just for convenience or to highlight the issue at hand
Amusingly, there is a change in progress that makes it highly desirable to categorise things as:
bug or feature-request or discussion
Apologies if we seem to be "owning" the front page while we do this ;-p