Its an interesting suggestion, but I am not sure how it might work practically speaking. Not trying to shoot this down, more from my lack of knowledge with some of the more advanced features on discord in general.
I know discord offers forum channels which sound like they do exactly what you are suggesting and more. For example here is a forum channel on the Appwrite discord:
The main issue there is a lot of those tools are dependent on enabling community mode on the discord, but discord doesn’t allow NSFW servers to enable it (trust me I tried with WG already).
I also don’t think MEE6 suports tools like that at least with the version I got us and the auto mod features in discord I think are fairly sparse if I remember.
The only feasible way I think we can do this atm would require me rolling something custom to handle it, and while I am not against it I would prefer on finally getting the main site out of the door first.
I do want to say though since I can not run the main site as open as I wanted to originally, your suggestion could work as a fair compromise assuming the community fails to hit the funding goals I will be setting latter this/early next week.
[EDIT] It actually looks like I can make forum channels without community enabled so this may be more feasible then I originally thought. I will have to keep it in mind as an option.