I've noticed some threads have started to be tagged as 'duplicate', which implies that duplicate questions are frowned upon and shouldn't have been asked again. But the FAQ explicitly states:

If you ask a question that has been asked before, that is OK and deliberately allowed. No question is too trivial or too "newbie".

Clearly, mixed messages are being sent. How should this be fixed?

Do not use the "Duplicate" Tag

We need a better method to find and link related duplicate questions, but a tag named "duplicate" is the wrong way. At the moment I am editing posts to include links to similar questions. If the questions are identical then I may opt to delete one.

It's rarely this straightforward, however -- usually there are two similar but not-quite-the-same questions, both of which have value for different reasons.