It seems to me that there is no reason for a bitcoin accumulator to panic sell if he already had developed and had been following various plans to manage his investment and to develop and practice strong cashflow management, so confidence comes from the reinforcement of ongoing actions, and yeah, when a guy is first building up his bitcoin holdings, it can take a whole hell of a lot of time - 1  or 2 cycles to get the bitcoin position up to a size that is meaningful within the guys income and position in life, and so we do not necessarily buy bitcoin with an intention of selling right away, especially if we might have an investment timeline that is 4-10 years or longer..

So maybe if the bitcoin accumulator will spend 6 years accumulating BTC, and then he might spend another1-2 years merely holding before transitioning into some kind of a sustainable withdrawal that might be price-based and/or time-based. 

I go over quite a few of my ideas related to sustainable withdrawal in my thread, and it seems that I have been a proponent of incremental sales of BTC rather than selling large chunks of the accumulated BTC at any given time - which I would consider large sales to be serving as a forum of trading rather than an investing approach to BTC portfolio management.   I dont' recommend trading bitcoin or even setting up a bitcoin portfolio up as something to get in and out of rather than setting it up to be 4-10 years or longer, and generally guys should not be selling their whole bitcoin portfolio in less than 10 years unless he has age and/or health related matters that contribute to such need to sell at a time that is less than 10 years.