I think the owner of those addresses saw the spam comment, read the legal notice, and moved all their bitcoin to new addresses.
That does make the most sense so far.
The "legal" notice implies that they wouldn't steal this person/organisations bitcoin until October.
And the "stealing" would be through legal means. Which reminds me about the
moronguy who thought he could get a judge to force Bitcoin Core developers to hand over satoshi's Bitcoins to him.