What can we learn from this list? First, it demonstrates that a broad group of people are comfortable enough with the bitcoin crypto to exit the traditional banking system and leave significant value on the blockchain for extended periods.
Erm no. Someone could have mined those BitCoins at the very start for very little effort. For example in 2010, someone offered 10,000 bitcoins if you bought them a pizza ( https://bitcointalk.org/index.php?topic=137 ). Bitcoins were worth very little then.
In the early days it was very easy to clock up huge amounts of bitcoins.