Claremont, Nocenti and Simonson's original plan for Madelyne Pryor
In this brief clip from Comics in Focus, Chris Claremont's X-Men, part of a documentary Sequart is producing, Claremont, Louise Simonson and Ann Nocenti discuss what their original plans were to do with Madelyne Pryor, the clone of Jean Grey created by Mr. Sinister who ended up becoming the Goblin Queen in UXM #234, and later committed suicide. True, it was a story that even before all that had some very questionable chapters, like when Cyclops just abandoned Madelyne to restart his affair with Jean, and other things that can be read about in Uncanny X-Men's profiling, probably the place that can make the most sense out of it all.
I think the biggest flaw in their resulting story was that Madelyne just had to be turned crooked, and if she had to die, why couldn't it have been just by "natural causes", maybe, that her cloned cells deteriorated and led to a simpler demise? Why did it all have to be in the sad way it turned out to be in the end? Some writers really know how to write the characters they come up with into a corner.