I still think that anyone who starts to engage in selling of their bitcoin, even small amounts, they need to come to their own assessment that NOT ONLY have they accumulated enough bitcoin, but that they have accumulated more than enough, and yeah, there is no way that any of us can really reach that conclusion for someone else without getting more details about both their finances and their psychology, which also relates to both their 9 individual factors and their goals.

Sometimes we might make these kinds of assessments in terms of how we perceive of getting to fuck you status, yet we might not even need to get to fuck you status if we start to think about some needs to reallocate or even to less allocate to bitcoin, which could justify some selling or instead might end up justifying putting new money into other investments and just letting the BTC investment ride, so in that sense, the more value that we have accumulated into bitcoin and also perhaps starting to build value in other assets (not necessarily shitcoins) could justify either being able to sell some bitcoin or focusing on buying assets other than bitcoin.

Maybe an example could be helpful?  Let's say that a guy had been working, saving and investing around 10 years in October 2017, and he found out about bitcoin and started getting into bitcoin in about October 2017, and at that time, he had around a $50k per year salary and around $100k invested into other assets (traditional assets, not bitcoin and not shitcoins), so in historically, he had been able to invest around $100 to $200 per week with some variation, so he thought that he might be able to continue with some similar level of investment with his adding bitcoin to his investment portfolio, yet he wanted to try to get to something like a 15% allocation into bitcoin.  He did not want to draw from his other investments right away, but he knew that he could shuffle around his investments in such a way that he would be able to invest something like $300 per week into bitcoin for the the first year (which would bring him up to something close to $15,900 invested over the first year, and then thereafter he would go to something around $150 per week either all of it into bitcoin or to invest in bitcoin and into his traditional portfolio.

So after his first year investing into bitcoin from December 1, 2017 until December 1, 2018, he had invested $15,900 into bitcoin and he had accumulated 2.06490 BTC... So he felt pretty good about that - even though largely his bitcoin holdings were then in the negative, since bitcoin had been spending a lot of time bouncing above $6k, testing $6k but not going below $6k until November 2018, so then the BTC price had gone down to $3,124 and also had been spending a lot of time around $4k-ish, which was way less than his average cost per BTC which was close to $8k per BTCe, and since he had been continuing to study about bitcoin the whole year that he had been investing into it, and bitcoin continued to be in a kind of price correction, he decided that he was going to continue to invest into bitcoin and not into his other investments around $150 per week into bitcoin and not into his other investments (and also not into shitcoins).

So really after this first year investing into bitcoin, this guy is getting to a point of reaching his investment goals of 15% into bitcoin, but then when he decides to continue to invest all of his investment into bitcoin and not into his other investments (based on the BTC price being down), surely he is starting to approach a state of overinvestment.. maybe not yet after 1 year investing into bitcoin, but if he continues investing $150 per week into bitcoin for the next year, then by the end of 2019, he surely has become overinvested in bitcoin, even if he may or may not be much in profits and even though he is likely still not even close to his fuck you level... So I can see where this is going, and whether it is one or two years more that he invests at $150 per week, he might start to feel overinvested into bitcoin.. but there also could be situations where the guy had continued to invest into his other investments, so during the whole period that he had been investing into bitcoin, his other investments diluted the amount that he could put into bitcoin, so in a case that he is investing in bitcoin and his other investments at the same time, it could take him 4-6 years or more before he reaches a status of being overinvested into bitcoin.

I still believe that there is a need to get to a pretty clear status of feeling overly invested into bitcoin before any sales of bitcoin might be reasonably concluded to be the case, and sometimes there is the amount that had been invested, but also there could be bitcoin price appreciation that ends up bringing the BTC portfolio into a status of being overly invested as compared to other assets that the guy has which may or may not justify that he continues to invest in some of those other assets or figure out some kind of a way that he does not start to conclude that he has too much in bitcoin and not enough in other assets, whether it is dollar or dollar equivalent (fiat too) or something like stocks, bonds, properties or commodities.

Once we have some of the base cases of the hypothetical person who started investing into bitcoin in 2017, we can make a variety of scenarios from the same guy and to figure out varioius points in which the guy might reach his bitcoin accumulation target and to figure out if he has just reached his target (and if that is enough) or does he need to get to some kind of an overly accumulated status prior to justifying starting to employ in strategies that might be something other than just straight-forward regular, consistent and persistent DCA accumulating of BTC.

Also Sim_card, I find it problematic that you use the term "take profits" to describe what any hypothetical BTC accumulator might be doing when he starts to sell some of his BTC.  That is more of a trading term rather than an investing term, since we should not be considering that we are taking profits in dollars (fuck dollars), but we may well need to hedge our investment in BTC, so frequently  we need to keep some value in dollars or dollar-related assets in order to attempt to create some stability in our own BTC investment status... which is part of the sense that we get if we are overly accumulated in BTC, we may well be better off having some of the less valuable assets in order to hedge and insure our BTC investment, and I don't consider that taking profits, even though surely as we get richer and richer from our having investments, we have assets that are in BTC and in dollars and in other dollar related investments, so there are going to be times that we are using our dollars to consume more and to increase our standard of living because we are richer and we have more options, yet I still find it problematic to be referring to that as taking profits, since that seems to be such a trader kind of a reference.