None of those answers matter to anyone but OP himself, you don't have the same power rate he does, you don't have access to the same mining gear prices, heck even your wife and his probably spend different amounts of money, so really if he tells you that he doesn't work anywhere and simply lives on the profit of mining it doesn't mean you can do the same.
Malaysiaboy is mining with S9i and T9+ and he probably has access to almost free power, so he is still making a profit out of those gears, but rest assured that you will be making a loss if you were to duplicate his setup somewhere else, again the reason why those answers are irrelevant to anyone else but him.
If you plan on mining and need to collect some information, you could start your own topic, tell us what is your electricity rate, how cheap/expensive can you buy mining gears, and based on that we would be able to give you some free advice.
what programs do you use for mining?
