... who could be behind such an enigma?
Someone who wanted to advertise their network by using a potentially historical bitcoin block.
But they messed up the arrangement of their OP_RETURN transactions and made a gibberish text art instead of the intended "
ZN" (
as seen in the reddit post).
If they have utilized CPFP to group the set of transactions together, it would have been mined with the correct arrangement and without any unrelated txns in between.
That's a takeaway that whoever did it isn't a seasoned Bitcoin~er.