I've been coming to Argentina for years. Both pleasure and also work and corruption like this is a fabric of society there. It's true they attempt it far more with non-residents there. I also have a friend from Venezuela and she lives in BA and she has to go through a lot of BS as well. It doesn't matter than they aren't white and speak Spanish fluently. She has experienced this same BS.
@Oatmeal what is your plan? You will extend this for another 90 days? Then will you just do border runs? A friend is moving there and he is asking me the best route to take. I read supposed crackdowns on border runs but I don't buy it. I'm curious what the best plan is these days to live in Argentina for a year or more. He has NO interest in getting DNI there for tax reasons.