I believe around 2015/2016, a verified account I follow changed his name and avatar (but not username) to "Italian Elon Musk", and a Mario mustache and hat supe

I believe around 2015/2016, a verified account I follow changed his name and avatar (but not username) to "Italian Elon Musk", and a Mario mustache and hat superimposed on Musk's then avatar. He made many posts along the lines of "I skippa tha taxes! Mamma mia!". Pretty obviously a joke, and after a while (I think a few days), he lost his tick, which I think was in a way his goal all along. So if you're saying such changes for verified accounts have been disallowed since 2012, and if my dates are somewhat accurate, then I don't think that's right. But maybe you're just saying it used to be disallowed around 2012, not that it became disallowed then.