Maybe they are testing their own LN effects. What gets me is that these transactions are created at the exact same time of the block that they are included in. That is not normal network propagation.
That get's me too.
Are they broadcast at the same time as the block?
Do they even hit the mempool?
Some bitfury blocks are 1/3 full of this address's tx's paying 0.0001btc fee each to send zero bitcoins.
They would be losing out on higher network fees by including these transactions. It appears that they are creating them themselves and stuffing them straight into their own blocks. So possibly one way of creating their own reliable off-chain service?