is it indeed only one entity doing all the spam?!
I'm not sure, but it looks like it: exactly the same fee, exactly the same transaction, often using the previous outputs as inputs, and broadcasting them in batches.
Maybe it's time to significantly raise the dust limit.
This transaction creates more than 1000 dust inputs.
Or maybe several people use same script/software which create TX with static or poor fee rate choice algorithm.
Maybe it's time to significantly raise the dust limit.
This transaction creates more than 1000 dust inputs.
I recall the dust limit was lowered from about 5460 satoshi to 546 satoshi some years ago, partially due to rising Bitcoin price. Unless Bitcoin price decline significantly, i don't expect dust limit will be raised.