Nobody can guarantee you anything. But in general, if your traffic quality is good and natural, they won't ban you - for traffic quality. That doesn't mean that they won't ban you for something else if you are doing anything against the terms of service.
Personally I don't think that it would be worth using adfly to boost visitors.. a) Their CPM rate is about the same as far more targeted platforms.. b) Their platform seems to be based on being a "wait for the timer to finish" middle man between warez sites and cyber lockers..
Thus ..you might get some exposure if you were just wanting to get people to see your name..but I seriously doubt if you'd get many actual "click throughs" to your site..they ain't there to click the ads..