Often, a user will suggest a feature in Slack and we will discuss it in a thread. After a back and forth we sharpen the request and I would love to be able to create an idea from a slack thread.
Thanks for sharing this idea! This might not be quite what you're asking for, but I wanted to make sure you knew about our Slack [to Aha!] integration.
It allows you to create records directly from your Slack channels through simple Slack commands.