Moving from canada
to the US or vice versa as long as you're not moving to the french speaking places shouldn't be a big culture shock but moving to a place where you don't speak the language, that has political instability or doesn't have reliable internet or you're worried about getting robbed when you go out then that's not worth going anywhere for anything. A lot of us had to consider this when Black Friday came.
One thing that I would research is if your home country taxes any income that you earn while being outside of your home country. Like if you live in the US but decide to move to Brazil and win an online tourn or make money from playing poker cash games then you still have to pay US tax on that money although you earned it in the Brazil. You would have to research what type of tax treaty your home country has with the country you're living in also. I say this because if for some reason you decide to go back to your home country later on and haven't paid taxes in awhile then they might ask you why you haven't paid them and they might come after you. So be careful with that stuff.
The other thing I would consider is how your government looks at online poker if you're going that route. Some governments are kicking sites like Pstars out while others don't care so that's another thing I would look at. Even if you find a country that doesn't tax gambling winning but someone is looking to get rid of online poker
then that country might be for you especially if they don't have a lot of live tables to play.
The last thing I would advise you on is to reevaluate your view on not paying taxes. I used to think they were a burden but when I step outside the US and see whats happening around the world and shake my head at the how some people live then I am grateful to sponsor programs that I know my taxes are helping. I know that's not what what most people think, they don't want to pay taxes so they can have more money for themselves but I see it as a trade off now.
A lot of countries have some type of retirement system or social programs that's based on how many years folks pay taxes and how much tax money they pay to the government but you won't get that much if you don't put money in. So if you don't pay taxes then you might be missing out on that later in life. Another thing to look at, I guess.
To be honest, if you're a consistent winner playing cards then I wouldn't worry about paying taxes to whatever country you live in.