On Wed, 16 May 2007, Daniel R. Tobias wrote:
In fact, saying that Bruce Wayne is Batman is a spoiler... of the original Batman story in Detective Comics #27 (May 1939), "The Case of the Chemical Syndicate", in which that fact is not revealed until the final panel.
We need a policy WP:COMMONSENSE.
It's extremely unlikely that anyone would begin reading Batman stories while 1) not knowing Bruce Wayne is Batman and 2) starting their reading with Detective #27. On the other hand, it's far more likely that someone would begin watching Babylon 5 not already knowing who Valen is, and that they'd watch it in a way that the revelation is a surprise. It's *possible* that either the Batman or Valen article could spoil someone, but one possibility is vanishingly unlikely and the other isn't.
This is another case which proves that robotically applying a rule is bad. But that doesn't mean the rule itself is bad. It just means that it needs human judgment to use.