Answer:
The effect that this has on the reader is that it makes him relatable
Step-by-step explanation:
The third line of "O Me! O Life!" by Walt Whitman says "Of myself forever reproaching myself, (for who more foolish than I, and who more faithless?)" where he adds himself in the crowd as one of the faithless and foolish, if not the biggest one, to show the reader that he has the same kind of dilemmas and human conflicts which makes him more relatable to people.