Navigate to the user’s profile, click Admin, then click Silence.
Enter the silence duration, a reason, and a message. When silencing a user, explain to them what they need to do before they can be unsilenced.
If the behavior still continues…
Based and Adapted from the Guide -> https://meta.discourse.org/t/discourse-moderation-guide/63116[Discourse Moderation Guide], if you don't feel confortable/agree with this content feel free to adap it and upating.