Okay, I'm going info dump on exactly who !Akemi is.
About five years ago when Yuuki Yuuna the anime aired some guy came here from reddit because r/madoka made a post about how there was always Madoka discussion here. This guy who came was an insane shitpsoter, literally the worst this site has ever see. He came to Madoka threads around the time tripfags were running wild and there were just tons of them, so he adopted a trip code as well. Thus, !Akemi was named. See pic realted for highlights of his posts.
This was also around the time that Troid became a janitor, and was on /u/ insanely trying to "purge" (his own words) of people he didn't like. Really, this is flat out said in the janitor logs. You can see Troid's own words here https://track5.mixtape.moe/keurmv.png
Troid is fan fic writing redditor/tumblrer who watches my little pony and is a crack shipper himself, so he protected this person known as !Akemi. This lead to !Akemi acting worse and worse over the years. Because all the people who told off !Akemi for spamming threads and behaving badly got their posts deleted while he was left alone.
Eventually !Akemi said some really stupid shit like how he planned to go to poland and fuck children, which lead to him getting banned. See pic related. And he out right cried publicly about how he thought everyone in Madoka threads were his friends, but they told him own disgusting he was, etc etc. And this set him off to the extremely. He has since then gotten even worse and ban evaded because he blames "ack" for no one being his friend and everyone hating, so he spams crack thinking it "hurts" this "ack" person. Because he wants to get "revenge" on him for hurting his feelings and laughing at him for not having friends.