Under Chapter 7 bankruptcy rules, most debts are cancelled when an insolvent individual with a modest income

Question:

Under Chapter 7 bankruptcy rules, most debts are cancelled when an insolvent individual with a modest income successfully petitions for bankruptcy. A person is entitled to obtain a discharge from debts every seven years. After debt discharge, creditors are barred from exercising their right to ever enforce outstanding debts owed by bankrupt debtors. Is filing bankruptcy ethical?