Anthony, hope you don't mind, but I moved this from "Bugs" to "Suggestions" as the functionality is not even built into Showcase to do this. I will look into this, but wanted to ask you if it would be OK if I made this a Showcase Option instead of using Discussion Thread Option settings. I am NOT a fan of using settings for other content types.
Its super simple to do, I just like giving people the option to control things within the addon itself instead of having to doing things exactly like discussion threads. That way those admins that want to do things 2 different ways have the option to do so and everyone is happy
This functionality will be in the next release (its already done lol)