Personality.
I'm fairly certain this is correct.
After the fall of the former Soviet Union and the rapid disappearance of communism in Europe, the population of the former Soviet States were extremely happy about the situation, and with the help of the West most of the countries in this region made a move to democracy. These principal Central Asian countries are Kazakhstan, Kyrgyzstan, Tajikistan, Turkmenistan and Uzbekistan.
Unfortunately, ten years later the jubilation about the democratization process in this region has gone sour, and the reality today is that most of these countries are turning into Dictatorships. Even though, the governments of these countries promised to support democratic ruled, they are now clearly embarked in non-democratic ruled.
The western democracies are alarmed by these trend, and they are trying to do what they can but no one knows what the results will be.
Answer:
Convenience sampling
Explanation:
In convenience sampling, the samples for the research is drawn from the population that is very easily accessible by the researchers rather than using a specific criteria.
From the description above we can see that the internet site use only its members as the samples. Since the data of the site's members is easily accessible for the site, we can consider it as convenience sampling.