It is indeed almost eerily peaceful in this thread, considering how much traffic it has.
Then again, it's not a drama-series, so "Morality debates" (though I think there was some of it much earlier) and most "Critical debates"/"Interpretive readings"/"Plot theories" (aside from maybe Hino's family situation) seem to be off the table.
"Shipping wars" is kinda out because there's, like, four characters in total that I can think of, two of which are a "designated couple" and shipping Omichi with either of them or, even better, Kogumom hasn't really occurred to anyone. Those two also haven't met during the series I think. :D
We do have a lot of "Plot predictions", which basically revolve around how Tarou-sensei is gonna pull the rug out from under us this time—fun times—and basically voicing our sorta-masochism in that.
While there have been some mild discussions, no "Tagging wars" have broken out.
There have been "Comparisons with other series", but no discussions really ever evolved around those.
Extratextual stuff (like this) also hasn't been all that plentiful.
It's as you say: "Approval" and "Prediction" mixed with "y u do this to us" and "just get married already" make up the bulk of it, and I think that's beautiful.
PS: I wasn't here before YagaKimi's anime adaptation finished, and I probably wouldn't be if it hadn't happened.