Their name being attached to the commit is itself, irrelevant, as their is no way to submit a patch otherwise. You could use a fake name, but you're just moving this fraud problem around.
You're going to have a hard time convincing anyone that using a tool constitutes fraud. Frankly, it's silly, if not genuinely stupid.
Film photographers in the early 2000s routinely called digital "not real photography" and Photoshop "cheating" because you could delete bad shots and fix everything later. Traditional musicians and critics dismissed drum machines, synthesizers, and autotune as soulless tools.