Because there's someone out there right now sitting at their desk thinking, "hmmm, I could translate this for the people, but I could also eat some food, take a nap, and maybe wake up tomorrow. Yeah, sounds like a plan," so that's why there are no updates.
Maybe cause they're focused on one shots? I noticed so many one shots are being updated. Maybe it has something to do with the closing of bato.to(whoa! Look at my conspiracy theory!!)
Why arent most of the popular manga being updated?? ヽ(`Д´)ノ
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