More roles and server management

As someone who enjoys making servers in their free time I feel that it would be useful if there was a way of designating roles as equal.

For example if I have set up a server so that I have multiple text chats with different topics, and as such, different mods. I don't want one set of mods to be able to go through and change settings of any of the other mods.

This would make creating more complex servers that can cater to multiple people at once without having to resort to bots that can be buggy, not obvious, and complex

A second feature that would be useful would be the ability to make roles that are only there so that they can be @ed. You can do this already but it is a little complex and will take up a lot of space on the role list, and can cause some unwanted side effects if done wrong. So having the ability to make roles that change nothing about the permission someone has, and is only there so that people don't need to use the dreaded @everyone.

TL;DR
A role system with more depth that is not a simple hierarchy but more of a branching system would be a huge quality of life change.

And the adding of roles (or some other system) that are used to designate a person interests so that it is easier to show them the content that they want to see.