Yeah, it may be a "how many angels can fit on a pinhead" case. 

Scoresby

Interesting angle to think about. But I still don't want small UTXOs :)

kepford

bitcoin

There is no such thing as a dust UTXO

I think the argument against this line of thought is as follows: 

If the fiat to btc exchange rate is $70k, then paying a miner $5 to mine a 3000 sat utxo makes less sense than just buying 3000 sats at market rate. 

So this only becomes a reasonable attitude if there is no way for you to buy bitcoin at market rates. 