Who are the real Top Contributors?

I didn't understand the definition of Top Contributors in meta bbs . 

Top Contributors in my Opinion 

In my Opinion top contributors are those who came here everyday and read posts and leave authentic comments on those posts and publish posts when they find a good topic. Am I right?? 

Partner Members 

But I think most of the partner members are those who just came here once a week or twice a week just to talk about their own board and instead of their own post they don't comment on any post , So these members are top Contributors?? 

What you think who are the real Top Contributors??