if i add this to my rust vanilla server would I get banned for using this plugin in my server or no?

That's really up to Facepunch. They allow admin tools and plugins that do not change gameplay.

would this be considered changing gameplay?

Merged post

or how would i be able to find that out?

Technically yes, since Facepunch intended those messages to be public. So use at your own risk.

im not gonna risk anything. I would only add it if i know it would be okay

It would likely be a low risk, as it isn't obvious, but I can't really guarantee it.

okay thank you i just submit a ticket to facepunch just to make sure