This is the best question because if it doesn't help you achieve your goal, what's the point? Whether tradelines can help you secure a mortgage on a house, open a new credit card, obtain a car loan, etc., depends on more than tradelines. Yes, tradelines may help you get your credit score into qualifiable territory. But, getting approved for credit requires more than good credit scores. So, if you're otherwise qualified (income, job, etc.), then this technique may be an option for you if need a quick boost in score.