Originally Posted by Lestropie
The developers really can't do anything about this; they can't stop players' friends and families from making their own profile using the same license key.
All that can really be done is a "gentleman's agreement" between high-ranked players, that secondary profiles if created will be deleted shortly thereafter.
Personally I don't see the appeal of a second profile, except perhaps for practising a new track first, then switching to a primary profile, for the sake of reducing your playtime. But to me there's too much risk of beating your main profile's time...
Never used a second profile, never will.
Lestropie