It seems too hard to manage with arbitrage trading. You have to make sure that you make enough profit to overcome the fees for moving from one exchange to another.
Correct, people thought that if you have a account in a China trading platform and let say in US, and try to do a arbitrage, you will just withdraw from one trading platform and sell it to the other. Its not just like that. You have to put into account the fee's and how fast you can withdraw it. And as far as having multiple accounts for trading, yes, I have 3 accounts that I managed right now and so far I don't encounter issues on my end. Although I just have to stay late my time to trade or buy coins that I like.