I'm not into crypto, so I might be wrong, but the site looks like one of those fake news sites whose whole purpose is to scam people into buying something or to do Ad fraud. As for Andrew Lee, he's the guy who took over and killed Freenode, so there's already some level of distrust there. Now he's offering a new crypto currency and I guess some kind of "citizenship"? Thanks, but no thanks.

So, all these years trying to switch to IPv6 and now we get all these v4 addresses back?

There is an article in VICE with more detail, including a court document that was unsealed on June 7th. During their investigation they made an agreement with a so far undisclosed country in which they established a server that would receive a copy of all messages sent through the network, and those messages were in turn replicated to the FBI servers. That agreement also ended on June 7th, so by now the servers must be in the process of being shot down. The existence of the unsealed court order, and the ending of the agreement, probably marks the end of this particular operation. I'm sure there are other on-going operations which they haven't disclosed.