Rudimentary filter for ACK. This is basically all you need to hide most of his posts, the dude repeats himself a ton. Put this into your 4chanx filter under the Comments section. These are active on /a/ and /u/ only, though you can add other boards.

stub:yes;boards:u,a;/!Akemi/;
stub:yes;boards:u,a;/the same person/i;
stub:yes;boards:u,a;/literally only care/i;
stub:yes;boards:u,a;/is wrong with you/i;
stub:yes;boards:u,a;/behavior is acceptable/i;
stub:yes;boards:u,a;/crack content/i;
stub:yes;boards:u,a;/crack shit/i;
stub:yes;boards:u,a;/mental illness/i;
stub:yes;boards:u,a;/factually wrong about crack/i;
stub:yes;boards:u,a;/are a shithead/i;
stub:yes;boards:u,a;/replying to posts/i;