[Bug Report] duplicate username & invalid link

### Duplicate username

<img width="876" alt="Image" src="https://github.com/user-attachments/assets/4a39f1d3-636d-416c-bbb1-b4c1b44dbd29" />

- GitHub avatar
- YunYouJun without github link

![Image](https://github.com/user-attachments/assets/6496723f-dcf5-41b7-9745-567e4ad2c79d)