I do not think that there should be any confusion on the topic that wether we should place stop loss or not..
I used to ignore stop loss when i was new in forex trading and then i eralsied that i should have cut my deal when it was showing me -20$ because currenctly it is on -200$
These are few things which you must learn proply and apply in your forex trading otherwise you will surely become victiom of any big news or update