As to Amanda McKittrick Ros, yes, she perplexed most conventional readers, but you must admit that there is a certain perverse brilliance to a book that begins
Have you ever visited that portion of Erin's plot that offers its sympathetic soil for the minute survey and scrutinous examination of those in political power, whose decision has wisely been the means before now of converting the stern and prejudiced, and reaching the hand of slight aid to share its strength in augmenting its agricultural richness?
Another author worthy of mention here, since he is frequently described as "the worst ever", is the American mystery writer Harry Stephen Keeler. Again, I cannot help but recognise his peculiar genius:
For it must be remembered that at the time I knew quite nothing, naturally, concerning Milo Payne, the mysterious Cockney-talking Englishman with the checkered long-beaked Sherlockholmsian cap; nor of the latter's 'Barr-Bag' which was as like my own bag as one Milwaukee wienerwurst is like another; nor of Legga, the Human Spider, with her four legs and her six arms; nor of Ichabod Chang, ex-convict, and son of Dong Chang; nor of the elusive poetess, Abigail Sprigge; nor of the Great Simon, with his 2163 pearl buttons; nor of--in short, I then knew quite nothing about anything or anybody involved in the affair of which I had now become a part, unless perchance it were my Nemesis, Sophie Kratzenschneiderwümpel--or Suing Sophie!