Why are people sending JSON data URI to the 0x0 address?

Like this: https://etherscan.io/tx/0x6ebe7a55b03652234f876204846112839913558b8cf9dc39d57c3b2b6e6fc3da

With the message:

> data:application/json,{"p":"ierc-20","op":"transfer","tick":"ethi","nonce":"1734850039504","to":[{"amt":"500","recv":"0xB229805cB2f933aD85a2D004056feB5d161A114D"}]}

There's a bunch of them.