Every single one of them was formulaic. The standard linkbait headline:
([Integer between 5 and 10] WAYS to [action verb like avoid or stumble or demolish] [juicy adjective like stupid or embarrassing or proven] [noun].)
But he’s not writing, he’s not building a following, he’s not doing work that matters. He doesn’t actually have a voice, he’s doing piecework, work that will be replaced by someone else’s output as soon as his boss can find someone cheaper.
He’d be way better off doing highly-paid work as a plumber for a few hours a day, and then doing real writing in his spare time.
Practice doesn’t make perfect. Meaningful practice makes perfect, even if you don’t get paid for it.