Xumi

If Xumi reaches out to you, it's best to ignore everything they say and, importantly, take screenshots of their messages. Share your experiences with others, calmly explaining why you suspect them to be Xumi. Encourage fellow community members to report them immediately, and stress the importance of collective action. Remember, Xumi is likely trying to provoke reactions, so maintaining a calm approach is key. Share your concerns with evidence, and foster a supportive community by reporting their actions promptly. In the face of trolling behavior, unity and quick reporting can make a significant difference.

Make sure you create a forum or a way of communication to tell others about them. This way, we can get more witnesses and make sure Xumi stays away from trolling.

The more people, more the chance of chess.com looking at Xumi's actions.