In many communities, cats and kittens are thrown out (or born outside to thrown away mom cats). I know out of the roughly 375 cats/kittens I trapped and got off the streets last year, almost all were throw aways. Not one was claimed even though I too have placed 'found' ads in the paper, called all area vets, and placed a found ad at vets offices. Not one was ever claimed sad to say, so after they were fostered for at least a week, they were then altered etc. and adopted to new homes. (Some were feral adults and TNR, but most were abandoned pets). I think Melissa did the right thing by this kitten in at least assuring she wasn't smashed on the street, or eaten by a preditor etc. If someone were to place an ad describing the kitten, I'm sure she'd look into it, but it's far and few in between that even care...at least around my city. I don't think I could in good conscience, keep driving if I saw a kitten wandering around in the middle of the night.