Moll can't seem to shut up about all the bad things she has done, why they are bad, and how she keeps on doing them anyways. In fact no matter how guilty she feels, she keeps right on doing the very same things that made her feel guilty in the first place, and she is sure to tell us all about it. In detail. Of course Moll is writing her book from the vantage point of old age, so she has had plenty of time to reflect on her past. So in the end, Moll Flanders can be read as one long story with one big moral: be good. And when you can't be good, be clever. You'll have time for repenting later.
Moll Flanders spends a tremendous amount of time detailing its heroine's crimes and errors, to make her redemption at the end seem all the more sincere and amazing.
By describing Moll's crimes and sins in such detail, the book hints that Moll's repentance is totally insincere.