(Disclaimer: I'm that friend) I'm pretty conservative about this, since it's hard to completely oversee the influence it has on a community (Slashdot's tag sys

(Disclaimer: I'm that friend) I'm pretty conservative about this, since it's hard to completely oversee the influence it has on a community (Slashdot's tag system comes to mind). While the need of categories/tags is already illustrated with the "Ask HN:" in this title, it does raise a few concerns: - it puts an extra burden on the submitter, do we really want that ? - is there enough content on HN to justify a category system at all ? - what if someone submits content in the wrong category, how should we deal with that? should the mods deal with this, thus adding an extra burden on the mods too? - what if an article belongs to multiple categories? All in all, doesn't it create more problems than it actually solves?