To me, planning to accumulate bitcoin in order to sell it all seems like trading rather than investing, but they there might be nothing wrong with coming to bitcoin with g it all down the road, yet if we spend time accumulating bitcoin and studying bitcoin, we may well come to realize that selling our bitcoin is not really any kind of a great plan... yet each of us has to figure out how to deal with our bitcoin once we get to a position that we might be consider to have enough BTC or more than enough BTC.
Accumulating bitcoin and selling it all off doesn't really make sense at all. Even if an investor has accumulated as much bitcoin in such a way that his bitcoin investment can be able to sustain him that he does not needs to bother himself with work, it will be very wrong for an investor to sell off all his bitcoin and become a no coiner unless if the investor has few days or week to live. So instead selling off all our bitcoin and become a no coiner, which is also more like trading, it will be best to withdraw from the yielded interest once we have accumulated more than enough bitcoin instead of selling all our coin.
Regardless of how big the person Bitcoin stash is, selling it off at this present rate is too much of a loss to me because we are still in the early days of Bitcoin, and $100k is nowhere near it peak price, so for an individual to sell now, it's either he is a trader or he has just few days to live just as you have already said, because no true Bitcoineer will sell too early and will be ok being a no coiner, without waiting for years and milking the best possible dividend from his Bitcoin investment, it's unheard of, unless that person doesn't really knows the potential Bitcoin has, because anyone that knows it value and potential wouldn't act in such a manner.
Let's say a person accumulated bitcoin between 2014 and 2017, so he invested around
$200 per week, which would have amounted to around $32k invested into bitcoin during that time, and he accumulated right around 80 BTC.
Maybe when he started in bitcoin, his goal was to be able to have a passive income of around $100k per year ($8,333 per month) from his bitcoin, so it could well be the case that
a guy who had accumulated 80 BTC can sell bitcoin at any time that he wants within his $100k per year target without worrying about running out of BTC... He just has to make sure that his BTC are adequately protected so that he does not lose them and keeps them sufficiently private.
It could also be the case that a guy who accumulated 80 BTC before 2017 may well have had started withdrawing from his stash in order to get $100k income per year, and perhaps he started 1 or 2 years ago and even at the time that bitcoin was in its lower points in late 2022, which maybe he would have had to withdraw 8-10 BTC over the past couple of years, and maybe now he ONLY has 70 BTC rather than 80 BTC... But, yeah, he still should have more than enough BTC to continue to feel that he can withdraw right around $100k per year (and perhaps even more - such as going up 10% per year in the dollar amount based on the debasement of the dollar). In that regard, such guy might already realize that he might sell from his BTC stash regularly and almost no matter the BTC price, but he might also decide to take some protections to sell less BTC during times of extreme BTC price dips, and perhaps regulating himself or not even selling any BTC during times that the BTC price is close to the 200-WMA or below the 200-WMA.. so since the BTC price right now is 120% higher than the 200-WMA, he might even choose to withdraw a few extra months of his regular allotment in order to prepare for months that could end up being worse, and he might not really concern himself too much if the BTC price is going to go up or down, but he does want to make sure that he has enough cash in reserves to support himself in any case..
So part of my point is that if a guy has enough or more than enough BTC, he is no longer accumulating and perhaps no longer HODLing all of his stash, but he is selling on a monthly basis and he might not get overly preoccupied about the BTC price whether it is going to go up or not.