Better permission setup

One thing that I've noticed on other forum pages that I think would be really beneficial, is it better permissions layout so that I can look at specific discussion categories and assign certain users to only have privileges to read, write, create, etc

A use case would be creating a form of a marketplace and only having verified what I would call sellers posting advertisements in and other people can view

Good news! 🎉
This has already been integrated into Flatboard 5.8.0 "Polaris".
The new permission system is much more flexible and should address the issues you described.
Thanks for bringing up the suggestion it helped confirm the need for this improvement.
You can find all the details in the 5.8.0 changelog