Who decide rank of respndant in mylot?

It's all explained very clearly here: http://www.mylot.com/o/faq/faq11.aspx

Your star rank next to your username all depends on us mylotters! :) We can decide to rate you positively or negatively, depending on what we think of your response or a discussion that you made. However sometimes it's done unfairly, like someone would rate you negative because they don't agree with your opinion, and that's not what mylot should be about.

as far as i know reputation rankings are based on how mylotters rate each other. if other mylotters rate you positively your reputation rank becomes higher. but if they will rate you as negative your reputation will go down too. thats just what i heard. i did not care much of that ranking and reputation thing. for me, whats more important is that im enjoying myself here. responding and posting and earning enough too. it will not matter as long as it doesnt affect my earnings. happy mylotting!