No complex formula-these writers simply stood out in one way or another for me this week. We have been recently transplanted to New England from Florida and are truly missing the south. If you add me to your WOT, I won't necessarily add you to mine right away but I will definitely visit and rate some of your reviews and be alerted to your new reviews. If I like what I see, I'll probably add you to mine. I rate based on overall quality-not whether or not I agree with your opinion.
Personal experience is key.
A touch of humor can't hurt either. But seriously, I am a very straightforward person and I promise to rate honestly. You won't find me playing the little 'revenge rating' game either-it's just not my thing. Nobody trips over mountains. It is the small pebble that causes you to stumble.