Hi,
All below addresses were emptied this year. Most of them in Sept. 2019. Around 2982 BTC in 21 addresses.
All addresses were first used in 2011, and dormant until now.
BCH is still there except 1 address.
No spending transactions on them so the public key was not known.
The owner he suddenly remembered after 8 years that he had some BTC?
[snipped]
What are your opinions?
Interesting. 2982 BTC is not a huge amount to influence the price of Bitcoin. But these are only what you have identified. More may have taken action.
I wonder that what is their purpose?
3000 BTC, not including the forked values goes to around 27-28 million bitcoin, and if that was to enter the market, I would have no doubt in my mind that there would be a lot of issues we'll see, especially on a high volume exchange if he doesn't decide to go OTC.
There are a lot of reasons why a couple of domart addresses could have woken up, there's also a pretty decent chance that they don't all belong to the same owner and it's just coincidence that they woke up together, but my brain tells me it's probably some even that prompted him/her to realized they have a stash of BTC.