Originally Posted by The Rules
The reason we stress the importance of topic is two folds. First or all, a thread's purpose is to allow users to gather their opinions on one topic in one place, and from that to discuss each other's opinions. By derailing the thread's topic, it makes it impossible for users to contribute to the discussion of the thread's original topic and drowns their opinion. Second, derailing a thread to talk about a topic that already has a thread dedicated to it means losing all the opinions and contributions of the users in the original thread. While it's perfectly acceptable for a discussion to evolve and branch out, it should never completely deviate from the original topic of the thread.
This rule specifically applies to three situations: disobeying moderators warnings, off-topic posts and hijacking threads. The first part is again very self-explanatory. If a moderator asks to drop a topic or if a certain topic is banned in a section, don't bring up that topic in that thread or section.
Originally Posted by Example 1
This is an example where a thread with a very specific purpose is derailed into a discussion about a different topic, but off-topicness can also be about deflecting criticisms about aspects and characters of the show towards other aspects/character.
Originally Posted by Example 2
Finally, the Wrong/Banned Topic rule also applies when hijacking a thread based on user-created works, for example fan fiction, fan art, etc.
Originally Posted by Example 3
Therefore, it's always important for users to make sure that their posts directly pertain to the thread's topic, and to obey moderators requests to drop particular subjects, out of respect for other users so that their voice can be heard as well.