if you see carefully there are some 547 satoshi incoming transactions to these addresses and after a while the funds from these addresses are moved (same to assume someone cracked the privatekey). it could be just a coincidence but if you dig down deeper these 547 satoshi are sent to lots of addresses even to some high value addresses and some of them are getting cracked, funds are moving out briefly after they receive these 547 satoshis. these are the wallets i know of, maybe there could be many. i dont know how but someone is sending these small amounts and somehow how cracking these addresses. this is my assumption. i hope experts here could uncover the mystery.
Just google for 'bitcoin dust attack' and you can easily understand the reason of these transactions and why they were 547 sat
How do you know that these keys are forgotten?
You are quick to judge about someone having "sane mind" or not.
I have some BTC aquired in the early days, and haven't sold almost anything until now, < 10% of it, it is far to early to sell something. BTC price is yet to go to expected values.
Those people you've mentioned have much, much more than me, and even if they've sold some small ampunt, they have absolutly no reason to move coins from other blocks at all. These stories abour lot's of BTC being lost are just legends, there were some incidents but majority of the old coins are hodled safelly in wallets, it is easy to keep the private keys safe. It is not a rocket science.