There is some overlap between forums. We don't get picky when it could go either way. But if there is no woodcraft, why shouldn't the post go elsewhere?
Some of the confusion comes from the manufacturer forums. We don't interfere with their subject matter. So it looks like they overlap in ways that topic forums don't get away with, and that's just the way it is.
Keeping to the topic lets people know where to look for a kind of information. Making every forum an anything goes forum would contradict the idea of separate topics and break up Bladeforums into completely separate forums for groups of friends instead.
Out of all the threads started every day, very few get moved, and many of those moves are obvious and uncontroversial.