I think the bot got banned because it started to ban people for too many subs, even mild ones, while lefty powermods set the bot up in more and more subs they took over. When posting on half the subs of the platform causes you to get banned from 40% of the platform, people start to get upset.
I can imagine people got pissed that one post on /r/sillyclothes immediately meant they got carpetbanned from half the website. Just because a troon got made fun of 5 years ago on said sub. As soon as you post on one wrong sub, you get flooded with messages telling you you just got banned from a million subs you had no idea even existed. Not just from /r/communism, but also /r/gardeningtips, just because the mod of /r/gardeningtips is some retarded tankie.
(and I just made up those subs, no idea which ones triggered the ban or had the bot active. I just noticed more people started to get annoyed and shared their ban from /r/throatfucksluts because the mod there doesnt want trump supporters posting on the sub)