Mods that add their own rumor responses seem to be fine. Bartholm NPCs still respond orally. Added Kragenir rumor text replies are there. Shivering Isles (which I visited for the first time this play-through to test the problem) NPCs still give proper oral rumor responses. So far as I can determine, all other options in an NPCs dialog response tree are unaffected, whether oral or text, vanilla or mod-added. It's only vanilla oral rumor replies that aren't there any more.
Kragenir is a prime suspect because it was one of today's updates (from 2.0 to 2.02a) and of course adds rumors of its own. So far as I know neither AFK_Weye nor Skingrad Outskirts touch rumors
I can of course revert to my pre-upgrade BAIN packages, and/or easily revert back to pre-cleaned ESPs, which will likely solve the issue. I'll do that if this inquiry doesn't produce a more satisfactory solution. What I'd like to do is track down the problem with TES4edit. Seems to me it has to be some universal setting that got switched from on to off (or set at zero, or whatever). Finding and correcting that would let me keep all today's work (which seems to have resolved or at least lessened a minor infrequent CTD issue). Only, I haven't the foggiest idea what to look for. I launched TES4edit and loaded all mods. Even found a heading (or rather a sub-heading) for RUMORS. But best I can tell that only shows the various rumors (and which mods use them) without any indication of whether they are functional or not. Nothing in that particular RUMORS section appears in red to flag a conflict. I'm pretty sure everything there was either green or at worst yellow. In any case those are indications for individual rumors rather than the universal switch I seek.
It's my bedtime, so I have the night to sleep on it. I'm hoping that in the interim some of our mod experts will chime in with instructions on how to find and correct this with TES4edit (assuming it's findable and fixable).
Thanks in advance!
-Decrepit-