Then you might as well expect these things to continue to go unfound or under reported. It's just as possible to invalidate content by being over secretive as it is to spoil it all. We know about the golden fishing pole, the figurehead, the bell and the anchor. Either whatever other goodies are there don't spawn enough (too rare), don't look unique enough to notice, or simply haven't interested people enough to take.
The Ararat content is languishing, many people seem clueless about the quest in gen chat. I know of no one who sets out to kill a shadowlord and I haven't even seen the hold open in months. From those I know who have done it, the loot was so underwhelming as to not interest them in repeat visits.
