I realize the 3/5th rule served a different cause, and I know the 3/5th rule was about representation whereas DADT is not. As I already have a basic understanding of US history despite the public education system's best efforts, please spare me any irrelevant arguments pointing out that difference. I know, and I'm making another point.
Sure, DADT still forces gays to stay in the closet while they're serving, but if it weren't for DADT I don't think we could realistically push for gays to serve openly today. I think DADT helped sway public opinion, and in that way is not as bad of a policy as it may appear to be.