I see. I hadn't seen the earlier summaries, so wasn't aware that they had been useful. I agree that the summaries in 1.7 are of dubious value.
And, yes, from what I've seen of the Discourse meta forum, @JMichaelTX, you're spot on viz. J.A.
I'm not regretting the last month I spent implementing it, however. My little group has been on Google Groups, Posterous, Minigroup, and (with great difficulty) a private blogging site. Discourse really solves all of our problems, and I can live with its quirks.