Okay Ill give it a shot. You know when people say 'there is no such thing as a stupid question'? That is actually not entirely true. I learned in mid school how to ask a proper question. People need context with the question to give a proper and helpful answer. So if you ask 'what is the best restaurant in Bangkok' it would be helpful to know if you eat meat or if you fancy local, etc. etc. etc. Another one. If you ask, 'what is the best place to live in Thailand?' it would be helpful to know how old you are, if you like beach or city, if you need medical care, if you fly a lot, if you want to live cheap, etc. etc. etc.
I hope you see where I am going with this?
Asking a group of 70k strangers 'what is the best business to open in Thailand' is just going to give you a bunch of nonsense. It shows you did zero research. It shows you have no business mind, it shows you have zero chance of success...Try doing some research. Or tell people 'Ey, im from here and X years old, I like to start something in the line of X, have an X budget, around X area, do you think this could succeed?'