Simply use the report button and move on. The reports will be sent to the appropriate staff members for review.
If the user you've mentioned is posting violations excessively, collect all the instances of his violations you can find, and PM them to the appropriate staff leading the section where the violations were posted.
For trading grounds:
Trade Assistant,
Trade ModeratorFor most discussion forums:
Junior ModeratorMake sure you don't reply to any flaming, personal attacks, spam, or other violations, even in your own topics, as that can lead to actions taken against your account and/or topics as well.
This might also be helpful:
Where Do I Have To Report If..?This post was edited by Arkhen on Sep 24 2017 08:57am