To what extent you may or may not like to hack does not depend on any external judgement, does it?
I think it's reasonable to judge that a fooer is someone who often engages in fooing rather than someone who has fooed once, for a number of values of foo — a dancer is someone who dances frequently, presumably because they like dancing, not someone who has danced once; a gardener is someone who gardens regularly, probably as a living, not someone who once pulled a weed; and similarly for values of foo including "paint", "box", "bricklay", "drum", and "hack". In none of these cases does it imply that the status is contingent on somebody else's judgment.
I think it's reasonable to judge that a fooer is someone who often engages in fooing rather than someone who has fooed once, for a number of values of foo — a dancer is someone who dances frequently, presumably because they like dancing, not someone who has danced once; a gardener is someone who gardens regularly, probably as a living, not someone who once pulled a weed; and similarly for values of foo including "paint", "box", "bricklay", "drum", and "hack". In none of these cases does it imply that the status is contingent on somebody else's judgment.