This great work coming to bitcoin shows much utility to the Bitcoin Core

Entrep

BitByBit21

Thanks Murch .. that looks an excellent addition

btcschellingpnt

This is run on the user's machines if their wallet software uses Bitcoin Core wallet under the hood. Users want to pay less fees.

Lumor

This is not for block building but for selecting inputs when you send a transaction

Murch

Interesting project.

Why is there an incentive to lower user fees rather than maximize miner revenue?

And, doesn't a complex algo for picking transactions mean you start mining later than other miners, and therefore have a disadvantage? 

joda

Yes,  it will improve the automatic input selection at high feerates 

Catcher

What do you mean? I'd prefer manual selection but this just seems like another option.

OriginalSize

Huh? It's an algorithm to pick the inputs for transactions. It is only run at high feerates and then finds the input set with the smallest weight. I.e. when the feerates are high, it'll ensure you have the smallest possible fee.

How is that an example of social decay?

bitcoin is not immune to the social decay that is happening particularly in the west. CoinGrinder is an example of such?