古米有个习惯

Meaning

Another derogatory term for Arknights. "冥" implies "underworld/death." "花粥" (Huazhou) is the name of a Chinese "folk singer" notorious for plagiarism - anti-fans use it to express dissatisfaction with Arknights "copying" other games' mechanics. More severe than "半壁江山雪之下." Note: Excessively attacking or praising a game are equally disliked behaviors.