Some Countries Worse Than Others...

Obviously some countries are far more likely to have scammers than others. I certainly don't have much experience with all of them, but I'm wondering if there are any countries which should just flat out be avoided.

Even on this forum, the most active country threads are Russia, Ghana, and Nigeria and one can assume based on that these countries are worse than others.

So my questions for everyone:

Are there any countries which should just be avoided?

If you still look in high risk countries, why continue doing so?

I would add South America countries, similarly to Ghana and Russia, in terms of not very satisfied lifestyle (I hate the word poverty)
You continue, because you are curious, maybe a little bit in love, there are many reasons why you take risks :)