"But Shaverism, whatever and by whoever, was only one of Palmer’s inventions. Brought in by Ziff-Davis in the early l940s as a wild-eyed fan who Ziff-Davis thought (after the death of T. O’Connor Sloane at something like the age of 167) could find a formula which would appeal to all the other wild-eyed fans who Palmer in voluminous correspondence to Amazing had claimed to represent, Palmer published a magazine filled with—there is no other way to put this—dreadful fiction by dreadful writers (with a few good writers encouraged to write dreadful fiction; good writers can certainly do this).
"The magazine had no credibility with the serious readers of Astounding or the Futurians or even the Fans-Are-Slans movement—but it had credibility or at least amusement value with others because Amazing under Palmer had remarkable sales figures, by far the highest sales figures ever generated by a science fiction magazine. In an era where Astounding was selling 50,000 copies an issue, the mid-to-late-forties Amazing was selling 200,000. These figures were never equaled. They were extraordinary."(Emphasis is mine.)