Currer Bell is referring to those who would judge her writing by her gender. She is trying to say that if she is to be found out, she hopes her book will not bet read in a different light. At the time, there were many people who were against women having a significant place in society. She was trying to get the point across that one would not go out of one's way to tarnish something considered beautiful, and that her work cold be considered the beautiful object in need of protctection. It is basicly insurance from her critisizers. By telling the reader to look at the book as an individual text, she re overs herself from judgement.