The dedication to impersonating Dr. Lodder is why it's concerning. The imposter wasn't just submitting Lodder's work as his own; he _permanently altered his body_ to appear more like Lodder.
That might be a coincidence though. He didn't submit only Lodder's work & bio, but also that of others in tattoo studies.
From the article: We discovered he’d also taken magazine articles I’d written and added footnotes to them, stolen catalogue essays I’d authored, and taken other people’s work from old books and paraphrased it.
He might steal work from everyone but because Hipsters All Look The Same, Matt Lodder feels like that guy is copying his personality when they've just read the same magazines and books and then selected the same tattoos out of the catalogue.