Graduated from the University of the Republic with a law degree, gained notoriety by filing criminal complaints against members of the Broad Front governments and for his activism against the installation of the UPM-Kymmene cellulose production plants in Uruguay.

[1] Salle is widely known for his flamboyant personality, aggressive and anti-establishment rhetoric and embrace of conspiracy theories, including the New World Order, that of the so-called "kleptocorporatocracy" or government of the corporations and that of the Judeo-Masonic secret coalition.

[7] He gained notoriety for taking several legal actions and making outrageous accusations, such as that former president Tabaré Vázquez was a "CIA agent" and a request for the extradition of former US Secretary of State Henry Kissinger for being the "ideologist" of Operation Condor.

[8][9][10] He also filed charges against high-ranking politicians, such as Vice President Raúl Fernando Sendic, for "usurpation of a university degree" in 2016, as well as against other government officials during the Broad Front administrations for cases of corruption and mishandling of public funds.

[29] In October 2024, after being elected National Representative, he referred to the Department of Maldonado, home to a significant Jewish population, as 'a territory occupied by Zionism and an appendix of the government of Israel.'

[31] The Central Israelite Committee of Uruguay and the Uruguayan division of B'nai B'rith along with figures such as former president Julio María Sanguinetti, condemned the comment and even called for official action by the Prosecutor's Office.