試してみてください: https://meta.discourse.org/new-topic?title=topic%20title&body=topic%20body&category=howto/faq&tags=email,planned
https://meta.discourse.org/new-topic?title=topic%20title&body=topic%20body&category=howto/faq&tags=email,planned
詳細: Creating a link to start a new topic with pre-filled information