If this guy went out and stopped trading and took that big loss, then maybe he really did let go of the loss. But I think he just needs to change and plan a better strategy especially the potential for better bitcoin after the halving can be expected. Of course I don't think this guy has quit forever and tried something else, but maybe he's just waiting for the right moment to move on.
But with that long, I'm sure that person had already seen the best strategy. And yes, I don't think also that this person stopped but a possible scenario is that he/she moves all the funds to another wallet for the safe keep. Because I believe that this person knows what his/her doing and probably saved it waiting for the perfect time to sell and who knows, he/she is also waiting for the next bull run and selling all of it.
Experienced investors don't easily lose, that's what my take. And they will find the best way to survive, not by quitting.
Since it is very clear that if he sell now, he's going to be on a bad lose and sending it to another wallet is the est idea looking like he might have sold it. Rich people don't buy to sell at lose unless the unbearable happens. It is only an average man that would buy Bitcoin to hold for long and sell it due to financial problems he might to facing having no alternative of getting funds to settle his bills than to sell his holdings and settle his problem.
The rich would always want to hold for a long time so that that can have a taste of the benefs when the value of Bitcoin appreciate very well. We cam decide now when the value of the Bitcoin is being sold or is transfered to another similar wallet.
As a Whale, then you wont really be that so dumb for you to sell on lose specially that even on small percent movement you would neither be gaining or losing, but basing up on the price on which he do
able to get in then he's still definitely on negative as of this moment on which it would be understandable that he had stopped on DCA on the time that he do sees that the price goes down even more.
For now then for sure that he's still monitoring up on his holding but dont mind on touching it out.
There's no sense that you would be selling out in loss. The great missing opportunity on here is that on the time that Bitcoins price hits up $15k on which it is the sweetest spot for you to DCA
if you do have millions of dollars but since this market is unpredictable then you cant really tell on where it would be going and this is why these kind of mistakes and missed
opportunities is really that something very common but doesnt mean that it would be over. As long you arent selling it on loss then those arent considered to be a total loss.