jm ^j¸1ÔHJ¦¨×åAP68ºÍ©Ãè*£D"Áæú`Lhttps://bch.gg/138
Had to do with the attack during upgrade. You can use memo's search & search the word mempool to find more discussion.
https://whatsonchain.com/tx/7901bf3d28aebd36d053ed1da7abdbd76ea1b867a8ebd868f822bcd3c7f8c60c