It requires that this mod contains 2 different types of help.
The not automated help : which is better display of the mexx tech and upgrade (you know easily which mexx upgrade) ; also what morax described as the ability to upgrade your eco with minimal amount of apm.
The automated help : auto-upgrade of mexx and e throttle.
I've often advocated for forbidding the automated help. Although i can understand the person that want to apply it only on mass fab, since it can be annoying to balance the e drain with them. The not automated help, is on the other hand, really helpful but shouldn't be in any case forbidden to use.
Any it's impossible to ban a mod. I guess you can watch replay/stream and spot a user using a banned mod and then report him ; but you can't prevent them from using the mod, they can just change the mod UID.