The last thing I personally heard is that the only︅ country that Paraguay has a treaty with is with Spain and Italy.
That user in︆ the expat forum has no fucking idea what he is talking about, and if he︇ really claims to be a lawyer, it just shows you the level of "professionals" you︈ are dealing with in that country.
There are no treaties with the US, yet.
You could illegally hold unto your previous citizenship regardless, for sure, as it would only be︉ enforceable if they detect it by making stupid mistakes at the border, but technically unless︊ you are not from Spain or Italy, dual citizenship is not allowed.
There has been︋ talks to reform the constitution to make it legal by default, but it is not︌ there yet.
But unless you decide to live in the country forever, I still don't︍ see the benefit of going through all that trouble of getting naturalized
Naturalized citizens will︎ lose their citizenship after 3 years of absence from Paraguay, in that aspect it is️ almost like a residency in practice... so, if that's the case, wouldn't suffice to just hold into a residency for tax purposes? I just don't see the appeal of going through all that trouble.