For example, the new book threads have (in the past) had spoiler codes used even though the thread said (Spoilers!). That was polite and it worked and people could read the threads and chime in as they read the book. Now we have some saying to just post the spoilers because it's allowed. That's rude and that's the sort of attitude that will and has driven some away.
So you're still trying to make the argument that a thread marked as spoilers for a book is not enough of a spoiler warning?