Mara is up to no good. Expect bullshit if they get the halving block. 
Discussion
Wut
I second this wut. Wut?
Mara mining a 4MB block with one transaction. https://mempool.space/block/000000000000000000021665966be1f16b419ddd7b3bbc2aabba16af78921910
Ok so it is all 4 MB, no more. I thought I saw something about going beyond limits, but that's within limits. What the heck did they pack it with? Dickbutts? Junk data? Some weird payments scheme?
that out of band bulllllshiet
By default transaction over 100,000 vbytes in Bitcoin Core's Standardness limits...this was never intended though miners will take out of band payments to help their bottom line.
nostr:npub1yx6pjypd4r7qh2gysjhvjd9l2km6hnm4amdnjyjw3467fy05rf0qfp7kza was the one who taught me this 😊 (gotta give credit were credit is due)
How does this help the bottom line?
What are they doing?
This:
I personally don't have an opinion on it one way or the other from a utilitarian standpoint. This might turn out to be an unexpected good thing and be relatively insignificant to each of us as individual people using Bitcoin as money. Especially because people using this still have to pay competitive rates (currently 5 times as much) per byte of data for the mining company to make a larger profit off of doing it than for them to mine pleb transactions.
It is impossible to be a publicly traded company, and do what is right for Bitcoin.
Coinbase mining proxy.