Right, you can enter without id if you are Argentine. To leave the country is a very difficult thing unless you hide you are local and you are lucky.
So, do not confuse people because they can spend some time in jail for your "advice".
I am not offering advice.
I am just reiterating that in practice, foreign-resident Argentines routinely enter
and leave the country on foreign passport. It's that simple.
And I was personally present when DNM in Ezeiza was not allowing someone to leave on a foreign passport
because they had overstayed X amount of time (pretty sure it was 90 days but won't swear to that). It's that simple.
Putting your understanding of the law aside - have
you heard of Argentines who came here for 2 weeks on a US passport and ran into problems?
Maybe you are right and it is DNM that is misinformed. Whatever. Just telling you it happens,
all the time, and I've yet to hear about someone running into problems - entering
or leaving.
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EDITED TO ADD: It seems DNM
approves explicitly of the practice:
Exceptions [to the reciprocity fee requirement]:
1- Argentine nationals who also bear Canadian or Australian citizenship, and present any of these passports at the Immigration control.
So it seems you're arguing the government suggests you commit an act that leaves you liable to imprisonment...
Two things I've seen about you, bajo, is that 1) you tend not to let the real world interfere with your worldview, and that 2) you enjoy brandishing 'jail!' as an argument.