Site-specific or free-form close reasons that appear under the heading “off-topic”

When closing a question or flagging to close, in addition to marking as a duplicate and to the predefined close reasons (“unclear what you're asking”, “too broad”, “primarily opinion-based”), three types of subheadings appear under the label “off-topic”:

  • Site-specific close reasons, defined by site moderators;
  • “Other”, allowing the user to enter a free-form text that appears as a comment (only applicable when voting to close, not when flagging);
  • Migration to meta.