When you click onto the yellow flag next to someone's name/question/answer this is what you will see:
Your report will help italki. Please select a reason:
Please select your choice.
I think this violates the community guidelines.
Chat or rant, adult content, spam, insulting other members, etc.
I think this is illegal.
Harm to minors, violence or threats, harassment or privacy invasion, impersonation or misrepresentation, fraud or phishing, etc.