I do use discussion and debate as linked terms, yes, but they aren't the same. I'd like to see more of both.
Debate like how you're used to seeing "Debate Teams" engage in? To me it's as useless as most online commentary. They're bending rules to steamroll or Gish Gallop opposition. It's not interesting or enlightening and there's a distinct lack of substance.
Real debate with (as you mentioned) citations, respect, a point, and actual experts? Love it. At my college there was a debate between two professors who had differing opinions about research in their field and it was awesome.
I don't have much to add that I didn't write elsewhere, but thank you in particular for your response. Thoughtful and thorough is always awesome to see! I hadn't considered the shift away from life skills to money-making skills, but you're quite correct.