Any reason the plugin itself doesn't work for you? It does require you to actually click the button to create the post, although I assume it can be automated for Ghost (we just tended to make it a little more generic so it works with WordPress, etc.)
@sanatisharif actually I was wrong... you can move multiple posts from a topic and create a new topic. It's actually called forking. It's under the "Topic Tools" drop down in the topic page.
Thanks a lot, its good idea also after that we need some plugin on nodebb to merge topics:
I need a plugin that will automatically delete or prevent posts that match regex's. This would be an extremely powerful way to combat randomized spam.
This would automatically delete the following posts:
"B A D S P A M M E R"
"B a D S p A m M e R"
"please visit -> B A D S P A M M E R"
"B A D S P A M M E R . S P A M"