I am with Deborah, we do want to encourage the time and energy put into this and be positive, but we also need to be conscious of being a professional and what we present to others. But I think we have already mentioned this several times.
Jim Walker had a nice question going not too long ago, and quite a few answers about the Rating ... TU/TD/Best Answer.
You will see the statistics on answering the questions. My suggestion is to weight the Best Answer and add TU.
One thing I hope Trulia allows us to do is to change the rating. I hit the wrong TD button once (meant to be TU), and the only thing I could do is to go back and give a TU, but it already registered TD.
Gonna go. But have wanted to contribute this for a whole day, so this is for now.
"Seeâ€ you later tonight