There is a link named "guidelines" at the bottom of the page. http://ycombinator.com/newsguidelines.html

These are rather out of date though. E.g. it says "Otherwise please use the original title, unless it is misleading or linkbait", which does not really reflect the current policy of "use original title no matter what".

I would love for that one to be kept as-is, and for HN moderators to actually follow their own guidelines on that.

When submitters change titles for clarity, and moderators revert it to an obscure original title that no longer has context, HN loses value.

That's quite wrong—we follow that guideline meticulously. All day long we change titles because they're misleading or link bait. Mostly it goes without notice, and that's by design: we try to be unobtrusive.