It is all about when the investor needs the money to buy house or land or car or Gold and Silver etc.... or when the profit is 400% or 700% that is advisable to sell and book the profits because 400% profit is very good.
I sold all my crypto a few weeks back and put the lot into gold.Seems I made the right call.Hodl forever is bullshit, sometimes you need to take a step back and know when to take profit and stabilise your gains.