Although you stated you never had credit to begin with, not paying a bill can still having negative consequences on your credit HISTORY.
Your credit history follows you and stays with your forever. Building a credit history is a process and every action/inaction has rewards and consequences. Not paying your delinquent account will negatively effect your credit history. Your credit history will increasingly become more important and vital in your daily life as you get older. When you apply for a credit card, a job, apartment, car, house your credit score/history is reviewed.
Although I agree that's its just Verizon - you should pay your bill. Above all else, aren't you annoyed by now with all the phone calls and mail you get from Verizon or the collection agency. Pay the bill and it all those annoying phone calls go away.