It also happens people from top tier country getting more than 90% of disqualifiations. I have an italian friends that really hates surveys and the reason for his disqualifications have nothing to do with his location, but with his other circumstances: single man (company search for parents, especially under 18, because children make parents to spend, spend and spend), not so skilled job, underpaid, no car). So he preferes to dedicate to other tasks as post to ptw forums than to waste his time trying surveys in vain. Another friend, a young student living with her parents, doesn't go much better with surveys. She lives in an italian big, populated and touristic city, but being a student, she disqualiies as if living in a tier3 country.