Some of you might be thinking this is the only place that is kicking against people selling their Bitcoin. Some of you don't know how serious this campaign against selling your Bitcoin is out there. This is a notable figure in the Bitcoin industry who is also an investor (Michael Saylor) clamouring against selling Bitcoin. 
Hold your Bitcoin like your life depends on it.
It is only an advice from Michael Saylor while you must know that different people have different living conditions, financial conditions as well as very different investment capital and positions. Michael Saylor and Strategy can hold their bitcoins very long time, even forever because they have good business model and Bitcoin works for their company in a way that no need of taking profit.Hold your Bitcoin like your life depends on it.
They have abundant money to use so they don't need more money and don't have need to take profit too but let's think about your position.
Is your finance good enough?
Is your investment position good enough?
Do you have any reserved money for bills, live cost and also emergencies?
If you are all good with these things, you can invest your money in bitcoin and hold it very long time like Strategy but let's say you will need to take profit sometime just to enjoy your better life. Be clear about it that you have good income, good reserved money for bills and emergencies so if you take profit, it means you use that money for something else than all those things. It's why I say you only take profit if you want to enjoy a better life with part of profit from your Bitcoin investment.
Consider about this withdrawal strategy
[ANN] JJG Sustainable Bitcoin Withdrawal Strategy
https://bitcoindata.science/withdrawal-strategy