jm £|FðÍvnEQÅBý\¢%]í6#¼(ÅÇaì÷ºLI've been brining this up for almost a year. It's a miner setting, doesn't need a fork. https://jasonc.me/blog/chained-0-conf-transactions-memo
https://whatsonchain.com/tx/ed910181da7844dac8cccca521b39a70f560179dc9fa2b72bf37b42148d66292