Antigua is an established offshore legislation, remember that holding funds in any bank represent risk, even more offshore where there is no deposit protection like in the USA.
USA has only 250k usd per account not more than that. If you have 500k in one account you loose 250k. . Singapore banks are the best in the world. Too bad they don't work with average ac holders especially from EU or USA, Canada.
The question is do you trust those EMIs than conventional banks for your deposits ? They can be wrapped up in a matter of a day if someone wants to evaporate. Traditional banks are more secured but I wouldn't trust Carribean banks for anything. Better to pay taxes and report them than loose my hard earned money.