Debt is definitely not bad... if it's managed correctly. That 3 digit number of yours that creditors, insurance, utilities, landlords and employers look at? That's basically a number that determines how good you are at being in debt and how well you manage your money or how responsibly or irresponsibly you spend. Debt isn't just good for you, it's necessary in today's world.
But debt is only good when you can promptly pay it back, otherwise the debt is only good for the creditor who makes bank off of the high interest you pay on it over long periods of time.