The forum rules and guidelines apply to everyone - no matter where you live.
Besides, the laws have nothing to do with where you live. If you are a US citizen, Cubans are illegal no matter if you are in Canada, Europe, or anywhere else outside the US.
I hope this clears up any confusion.
Sorry, but this rather creates a little confusion. I am not sure if this is correct. If it is, can you give me a source that supports your claim? It's not that I want to challenge you but I want to avoid that people get the wrong impression.
If you are a US citizen you can legally smoke a Cuban cigar anywhere in the world (exclude places you cannot go, of course, but you know what I mean). It is not forbidden to smoke a Cuban cigar in the USA whether you are a US citizen or whether you are here and have a foreign passport.
The trick is that it is not legal for anyone (some diplomatic exceptions certainly apply) to purchase, sell or import Cuban cigars in the USA.
The Embargo aims at an economic sanction not at a deprivation of personal freedom.
I am quite certain of the above from how I understand all the stuff I read about it. The interpretation you give would be scandalously restrictive and quite possibly unconstitutional (like many other laws).
The only thing where I am not sure is whether it is allowed for an American to buy Cubans abroad and then smoke them there without bringing any into the US. I believe this is allowed.
At the same level I believe it is not illegal for an 18 year old American to drink in a country where the legal age is 18 even if here it would be illegal for him or her.
Reciprocity and validity of laws on an international level is a difficult subject and I am by no means an expert, so perhaps we have some people here who have actually studied law or at least have a firm grasp of the subject at hand.
P.S.: Note that you should never buy a Cuban and then smoke him or her. The poor people have enough trouble as is.