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.
Advantages of society: Discipline - it comes forward when order needs to be in place, people are able to incorporate discipline as accountability for action. Formation or Order - compromise and healthy conversation and agreement form for each member to get what they want and experience what they need.
The term that is described above is irregular. This word explains things that are not exactly on point, not in position, this is used when things are not organized. The term regular on the other hand is completely opposite for they are use in defining things that are planned and more organized, things that are point and are in the exact line.