Anything that brings you profit, is very important to keep it secret. because when you expose what you are doing that bring you funds you will definitely get enemy because don't trust anyone thinking is your friends or family members, that you will says what is bringing you profit he will be a danger towards you because they will started observing your movement to try to attack you to steal from you. Is good to give information about and update that give profit, but don't try to says that is what is giving you money since Don's days, because that will make them attack you and steal anything from you and your life can probably in a danger, because some can do anything because of money. We just need to be very careful with what we are sharing to people. This life don't trust anyone that you will share or telling them where you generate your funds is very risky. Crypto is the biggest risk you will do the tell them you have invested on bitcoin and have huge profit that will make bad mind to hurt you and get everything from you.
Apart from keeping it secret, there are people who will share their knowledge of making profit for free, and when people see what you are making, you become a threat to them, so it is very reasonable to be very careful so that you do not become a target because you don't know people are watching you. so the world is now full of wicked people and you wont expect people to do somethings you here them do and the worst is people that are the closet to you and that is why you have to be conscious of everything you do especially even when it comes to social media but people seems not to care about it but until they fall victim.
Especially when you are a serious holder it is better not to share anything for the sake of been safe because when you are not safe then what is the essence of everything because if you look at majority of those holding a large amount of coin you will never know who they because they know that any form of information will only put them in trouble so there is always need for us to learn from them just to keep our self safe.