I actually don't care about this because for me btc price will always fluctuate for various reasons. But when I look at this, maybe a bit worried
Why this thread then? Are you trying to get merits or fill a sig campaign quota?
I don't know how many people in 10 years ago still own a lot of Bitcoin until today and sell it at the same time. So What you're though?. why are they selling it now, and not on ATH acouple years ago?.
Who says they sell at all? If I decide for some reason to move my BTC from about ten years ago to a new address, does that mean I want to sell them? Even if the coins in question end up on some CEX, it does not mean that they will be sold, and even if they are sold, do you even know what a few thousand BTC means in the total daily volume?