We have a fairly simple mentality here, and its spread between two camps. It breaks down to a opposition between those that feel you should go discover, and those that feel you shouldn't have to. This is honestly ridiculous.
The choice to go discover is up to the end user, and will be until its mandated that we can't reveal any information. That presents another problem though, spoilers for those that do want to go discover. Inadvertently learning something because of someone elses careless conduct.
So, people aren't going to stop posting, and they certainly aren't going to stop asking. Why not introduce a simple BBCode spoiler tag? IPB supports it, its simple, and leaves the user seeking the information laible.