Rhialto's story ruined Dying Earth for me.
Now for something a little less dramatic, Rhialto the Marvellous did away with the very thing that made Dying Earth so appealing. Its very namesake, the pervasive tone of it's inhabitants moods and actions. The feeling that at any time the sun may go out, stirring an abject fatalism in the waning earth's inhabitants. This message is conveyed quite beautifully, by observation of the principal characters and exposition by men of ancient knowledge.[1-2]
"...these people of waning Earth, feverishly merry, for infinite night was close at hand, when the red sun should finally flicker and go black." [1]