I would tell you the name of the forum CityGirl, but I think this site has an automatic blocker on it with that name. I've tried to mention it before (I know the owner, as well as the owners of a very popular bar here, which cannot be named) and it always gets blocked.
Prostitution, as a business transaction between two consenting adults, is guaranteed by the Argentine constitution, it is not merely decriminalized. However, it is still considered a profane profession by many here, and many working girls get together on occasion (they have a union) to petition the government to actually allow them to claim taxes (to be in the white) via monotributista and such. I think it's a shame that the constitution is so advanced in that regard and yet the people who run the country won't give it a fair shake. Prostitutes here make more money than doctors, very often, BTW.
The constitution forbids interaction of third parties between the worker and the payer. It's obviously to keep pimps from controlling things and having women working under duress. But during Cristina's time, she closed many, many bars where prostitutes hung out citing "human trafficking" (a very popular one is now the new Buller's, another one is a bank onVicente Lopez and Azcuenega and one of the most famous and high-class was right across the street from the Alvear Palace Hotel - and the concierge sent many, many men across the street. Hell, the taxi drivers used to get a percentage for suggesting the place to travelers), but using the fact that the girls had to get the guys to buy drinks before they could leave with the customer, and had to report back for more work afterward (or lose their job - it wasn't forced, but it was like any other job, it had hours and conditions) - thus a third party between the worker and the payer.
The sex worker union is complaining because so many venues where the girls could go to sell their wares have been shut down! Now most of the prostitution business is done via web pages on the internet, and things can be more dangerous for the girls (gee, imagine idiots in government getting involved and making things worse!) The real joke there is that the all of the clubs that were closed, that I know of, were full of women working willingly, and Cristina didn't close the places in the outlying areas in the province and other parts of Argentina where truly young girls and women are brought in from other countries as sex slaves and have to work off debts, etc.
Argentina is no longer a big destination for sex vacations, hasn't been really for 2 or 3 years. It used to be huge, but with the economy so expensive and most of the clubs closed (oh yeah - "La Pampita", which was actually called "Nuevo Estilo" on Las Pampas, was one of the last ones closed, last week [obviously not due to Cristina, though], but because the owner and some cops were mixed up in corruption), people don't come here any more (actually, really, no pun intended - it just slipped out! OK, that one was an intentional pun...)