Discord is a 3rd party platform that is not owned by Frontier Developments. If you believe someone has breached Discord's Terms of Service, you should look to report the matter to Discord.
You are able to submit some of the following via Discord if it has occurred on their platform:
- Harassment
- Threatening Behaviour
- Doxxing
- NSFW content
- Other Terms of Service violations
In order to report misuse of the Discord platform, you will need to navigate to the two following locations and follow their instructions:
https://support.discordapp.com/hc/en-us/articles/360000291932-How-to-Properly-Report-Issues-to-Trust-Safety
&
https://support.discordapp.com/hc/en-us/requests/new?ticket_form_id=360000029731