Can you do something about the discriminatory job ads on your site please? If you're unable to review them how about adding a 'report job ad' or similar button?
For example I just clicked on ART BRO CREATIVE EDUCATION LIMITED's
"Seeking for an experience Music tutor
Industry: Arts, Entertainment and Publishing, Teaching & Training (Teachers, Tutors, Corporate Trainers)
Job Type: Freelance / Contract
Location: Tuen Mun, New Territories
Job ID: 8246
Job Views: 143
Seeking for an experience Music tutor
Foreigner teacher preferred"