You get 100 bits for registration and it is credited to your bitcoinget account, but the minimum withdrawal is 500 bits so you have to earn 400 bits more to get paid. If I am right users from tier 1 countries get more tasks to earn.
Oh! OK!

Now i understand!

I check surveys, but i get "We don't have surveys in your country yet. Please check again next month!"

Jobs are a bit crazy just for few points.. Probably is like you wrote - for other coutries it looks better

Anyway it is very nice service:)
The jobs are probably the best bet for people from all countries to earn. Our best earners are actually from Venezuela, Nigeria, and India, and they are all doing the jobs. The key is to level up by accurately completing the introductory jobs. Once you've achieved a high level, you will have access to significantly better-paying jobs.