I respectfully disagree.
As Randy alluded to in ORP, things were just fine before ratings/rep, and things have been just fine since disabling them, so why the need for change? I don't think any case has been made (beyond "I'd like to have this feature back") that we need to re-start a feature which served as a tool for so much controversy and heat, and resulted in what many people agree was abuse.
However, if ratings are useful for rating informational threads and serious consideration is given to reinstating the feature, I would suggest restricting ratings to the most heavily trafficked miles/points forums. We don't want to see the return of one-star "happy birthday" threads. And by restricting usage to the most heavily trafficked miles/points forums, you dilute any one person's ratings, and get a more accurate picture of any thread's usefulness based upon a larger sampling.
I think it's a bad idea, but I don't ultimately care. Just saying.