Its a Chinese exchange bot gone awry. Normally it makes transactions at very low rates... But for some reason it also broadcasts a few transactions at normal/regular rates too.

028559d218

Even though this transaction has clearly 

 an address paying itself ~ 3800 sats, with a 300 sat fee attached, with an op_return included...

If your claim is that this transaction has "ZERO ECONOMIC PURPOSE" then how does the spender afford the transaction fees?

bitcoin

Spams/Scams on Bitcoin... are limited by Limited Blockspace and Fees

> Even though this transaction has clearly *ZERO ECONOMIC PURPOSE.* It is *literally* an address paying itself ~ 3800 sats, with a 300 sat fee attached, with an op_return included...

If your claim is that this transaction has "ZERO ECONOMIC PURPOSE" then how does the spender afford the transaction fees?