The unspoken agreement when it comes to HFS is to be vague, but warn the player that bad things may happen. I personally also include the recommendation to back up their save FIRST, just in case. All the previous arguments about losing a fort, people already know, etc. are a crock.
If a player is told "it might be dangerous, back up your save just in case" (which is usually what happens, or close enough), I see no reason AT ALL to spoil the surprise. What happened in the second post was purely a dick move, and I strongly, STRONGLY disagree with it.
No, we don't tell someone who asks about farming to farm dimple cups for food. If you'll check "You Have Found...", you'll see that NOBODY there claimed that under the sword was a bunch of prancing gnomes, fluffy wamblers, and endless supplies of booze and naked chicks. The OP asked about the sword, and he was told there was danger around it, and how to claim it. Nothing more. THAT is how it's done. Deliberately trolling a newbie into killing their fortress is one thing; letting their own curiosity do them in is another.
Personally, I don't care how attached you are to your fortress; the motto of the game is "Losing is Fun!" for a reason. If you can't have a sense of humor about it happening to a fortress, this is probably the wrong game for you.
Woah woah woah. You can't just say "IF YOU DON'T LIKE LOSING GTFO"; if someone asks a question, they should expect an answer. If they want to find things out for themselves they don't have to ask.
Stop being such nazis about a mere quote put in the game to make people feel better about the learning curve. What a load of self serving bastards.
Anyway, to try and keep this post away from being a simple flame...Spoilers, I agree should be respected. To a certain extent.
The whole idea of the game is that the Dwarves dig too deep and etc etc basically it's kinda based around Lord of the Rings and the Balrog of Moria.
But the key thing is, it's a game. Games are meant to be fun, the game is much more complex than just getting pwned left and right, it's about building a cool fortress and making dwarfbucks too. Now, this guy could of spent days on this fort. Is the spoiler really worth it? No, no it's not, it's not like you're going to be "surprised" each time, it's only the first time. If your only enjoyment is the first time you get owned by Demons.
This is not the right game for you.