I'm glad you brought this up. I think it is generally difficult to come up with enough value on top of "hmm, this is a thought-provoking conversation and I'm glad it is being discussed" to be worth commenting, so comments vehemently agreeing or disagreeing end up being more common, and it is tempting to view the distribution of comments as being representative of the distribution of viewpoints. In reality, I suspect most people are like you (and me), and find that reading different viewpoints on a subject helps them solidify their own thoughts.

So yeah, I'm at least with you on finding this particular conversation useful and not at all wasteful drivel.