NS,
How is someone saying that they don't think that they have gone into detailed discussion on earthquakes a denial that that they have ever said earthquakes are increasing? None of the above from you answers that.
He didn't say that he "didn't think" we'd discussed earthquakes in the way I described, he said categorically that it didn't happen:
"...At no time have I gone into any great detail about earthquakes with you, or anyone"; and later
"Out of a courtesy you don't really deserve bluehillside...I have not gone into any details with you on the business of earthquakes...and certainly not as you previously implied in a tat-for-tat dialogue in which you presented your proof in exceptional detail."
His only way out of that if I'd had access to the exchange would have been the reverse ferret of, "oh OK fine, but I don't consider the extended exchange we had to have constituted "any great detail" or "any detail" about earthquakes so I'm off the hook anyway".
I'd have thought that to be very thin, but you presumably would have disagreed.