In the Ci-poetry world of the early period of Southern Song Dynasty SU Shi's Ci-poetry was turgidly defined, devoutly imitated and widely followed as an orthodox model and as a sutra of that time.
If we explore "Travelog of Mr.Fong": Volume 10(superscript th), it is rather exaggerated to say "disguise or deceit" but just a game of scholars, nor a revenge from hatred.
He wrote in a letter, and I quote, 'It is not difficult by concealment of some facts, and exaggeration of others to bias a well-meaning mind, at least for a time'.