Hi YuSeung Jeong,

This is Dennis from the Data Working Group. We received a report that you are tracing the copyright map (Vworld, Custom (https://xdworld.vworld.kr/2d/Base/service/{z}/{x}/{y}.png). Remember that we can not use maps incompatible with the OpenStreetMap license. We will put an 0-hour block for you.

Dennis Raylin Chen Data Working Group data@osmfoundation.org