There’s a post getting lots of upvotes talking about how the government can’t access the coins it seized from silk road. That’s not true. The government had access to them and eventually auctioned them off.
Here’s an article that covers one of the auctions – https://fortune.com/2017/10/02/bitcoin-sale-silk-road/
And for what it’s worth, I used to work for one of the companies that participated in these auctions. The coins are very much in circulation.
Don’t believe everything you see on the internet folks.