Author was recently bullied on social media by anonymous tormentor to the point of depression, it turned out to be Satsudou's manga's writer and he was fired by Kodansha. https://desuarchive.org/a/thread/259853253
It starts out reasonably strong, if you're into watching people slowly and horrifically kill themselves, and goes downhill from there. The first couple dozen chapters can be read as an anti-smoking ad; after that, there's not much point reading imo.