Hey guys, keep cool

Wikipedia:
"A spoiler is a summary or description of a narrative (or part of a narrative) that relates plot elements not revealed early in the narrative itself. Moreover, because enjoyment of a narrative sometimes depends upon the dramatic tension and suspense which undergird it, this early revelation of plot elements can "spoil" the enjoyment that some consumers of the narrative would otherwise have experienced.
In recent years, spoilers have mostly appeared on specialist Internet sites and in newsgroup postings. Usually the spoiling information is preceded by a warning, or the spoiler has to be highlighted before it can be visibly read on the Web page. But in recent years these warnings have been omitted, and some unwitting readers have had films, books, and other works they were looking forward to experiencing spoiled."
Problems in that field:
1. People who don't want to see the spoiler are more or less forced (maybe even by accident) to see it
2. It's too easy to get spoilers (if wanted), so people give up on trying on a quest or related too easily, not experiencing the satisfaction resulting from putting effort into something
3. People definitely could become frustrated on a detail (often enough a bug or inconsistency) so it wouldn't be their fault of not having put enough effort into it, but circumstances could have prevented them from the deserved success
I think this is something we GMs have to discuss in a meeting.. whether and how to give out spoilers on petitioned questions regarding quests and other content.
For now there's no way other than joining a guild or asking IC for directions.