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Bitcoin has only limited supply of 21 million with only 10% of it remaining to mine so there is no such thing as over accumulation for me. We should accumulate bitcoin as much as we can. Doing DCA strategy using our spare amount of money after paying the essential expenses is the best approach to increase our holdings without risking our financial security. DCA also is less stressful as you don't need to time the market waiting for the bottom to buy. We're still at the early stage of bitcoin's mass global adoption. There's still plenty of room to grow. In 5 or 10 years, once more countries become interested in bitcoin, it's still possible for its price to increase double, triple, or maybe even higher. Our aim for now while accumulating is to be patient and believe in bitcoin's long-term potential.
If something is scarce (or rare), then you don't need a lot of it in order for it to be an asymmetric bet to the upside. Of course, bitcoin is currently divisible by 100 million, so each bitcoin has 100 million satoshis, so you may still feel that you have a lot of satoshis, even if you have less than a whole bitcoin.
Logically it does not make sense to me that some folks might have had reached a status of overaccumulation of their bitcoin, since there is likely some value to spend your bitcoin rather than to die with them, but hey, whatever, you can think about the matter however you like in terms of your thinking that overaccumulation is not possible to achieve with bitcoin merely because it is amongst the most (if not the most) scarce of assets known to man.
Remember the times when everyone thought that 1 mbtc is like having dust lying around the wallet. I have never looked it up, but I can imagine that lots of wallets have been abandoned or not been paid attention to because back at the time there was only 1 or 2 mbtc left in it. I am sure that a lot of consolidation transactions took place when bitcoin began to rise to these impressive prices.
I expect something similar for satoshis to happen. 1 satoshi is roughly 0.1 cents now.
Satoshi (sats) Bitcoin U.S. Dollar
1 Satoshi 0.00000001 Bitcoin $0.000941
10 Satoshi 0.00000010 Bitcoin $0.00941
100 Satoshi 0.00000100 Bitcoin $0.0941
1,000 Satoshi 0.00001000 Bitcoin $0.941
If bitcoin goes 10x, and this can happen faster than many people think, 1 satoshi is 1 cent.
I have been around when nobody was talking about 1 mbtc (millibits), now it has become the standard unit in most cases. The next step will be μBTC (bits = 100 satoshi) and that is when 10x is achieved and 1 bit is around $10.
That is why I recommend not treating any smaller left over amounts in wallets as dust and instead make sure private keys are kept and not thrown due to the disbelief that it could ever become worth something. I am sure there are so many dead bitcoin wallets out there when owners thought it is not worth noting the PKs because those few thousand satoshis aren't worth it.