As the threshold for paying taxes on monthly income in Argentina will be raised from $200.000 to $330.000 on November 1, I would not use the word "wise" to describe ths kind of tax advise.
If my memory is correct, $90.000 was the monthly taxable income threshold in 2020. It increased to $150.000 in 2021 and then to $200,000 this year.
I actually check the AFIP website annually to be sure I am not transferring more than I should.
Regarding the title of this thread, there is noting "illegal" about making repeated Western Union transfers.
Not paying taxes which are actually owed can be considered a crime.
I have been living in Argentina for 16.5 years and I have never paid one centavo in income tax to AFIP, but I haven't broken any laws.
That's due to the simple fact that my monthly income (in pesos transferred via Western Union) has always been below the thresholds.
PS: The last time I spoke with my acountant was in 2019 and she confirmed that as long as my anual income (averaged monthly) remained below the threshold, I would nt owe any income tax or be rewuire to make annual declarations.
I am only inscripted with AFIP for the bienes personales, which I have not owed or paid since 2008.