to address some of the things quickly:
Spoiler tags: I'm all for them. As long as they're used in compliance with the rules though.
Honoko's point: It's almost impossible to encourage good discussion of all the animes w/o their own sections and not allow detailed info to be shared. Entering the last pages of discussion on a show that's towards (or reached) its end is a risk the reader has to consider.
Identifying someone else's post as a spoiler: We have several ways that you can bring a spoiler to the staff's attention, reporting the post, PMing the staff or PMing the person.
If, for example in the Naruto anime thread, before the Chuunin Exam arc starts, someone posts: "You think ____ is a worthless character? Just wait until you see how much ass he kicks in the Chuunin Exam!" (before the Chuunin Exam's been done in the anime)
And then someone says: "____ getting to the finals of the Chuunin Exam is a spoiler"
They are both obviously spoiling.
But if for example someone started specualting on what might happen in later episodes with: "Maybe ____ will become the next Kazekage"
And someone quotes that and says: "SPOILER!" Then obviously only the idiot posting second is the one doing the spoiling.
Upcoming episode titles can have spoilers in them, and you all know that. Currently the episode title topics in Bleach and Naruto are fine, because the material is all fillers, and you can't really spoil those unless you've been secretly drinking with the monkeys who write those scripts.
But why would we need to know the names of upcoming episodes after the shows get back on track? At that point the Upcoming Episode Titles thread WILL almost certainly be moved to Open Discussion, because any discussion about those episode titles will obviously contain manga references and spoilers.
Consider this: Showing the title of episode 95 of Naruto BEFORE anyone even knows who Tsunade is.
Also, the "Soul Society arc" being referenced early on in Bleach.
Right now we have those threads in the Naruto and Bleach anime sections because the shows are in a lull and people want to know what's happening without having to watch the episodes.
If lots of people feel like posting episode titles in the anime only sections should continue, then it'll happen. But if one of those episode titles or arc names is a spoiler, would you say just leave it there?
edit - goddamnit Budweineken beating me to the punch!
But I still think moving the upcoming episode titles thread from Naruto anime to Naruto Open Discussion is advisable. Heck, the Open Discussion section exists almost exactly for threads like that. What to do with the Bleach one is more debatable...