I hate Jonas journals as much as you do, but the fact is...you can't tell people what to write in their journal about. People write about what they're thinking and if Jonases (or whatever the plural of Jonas is) or any other silly thing is on their mind they've got the right to write about it. I personally just stopped reading and commenting on those journals after I read about the 50th one.
I agree wholeheartedly with AMY!. You kind of came off as hypocritical. This journal seems to be the exact thing you're telling everyone else to stop posting.
Maybe making a journal like this is a waste of time too? You could have made this actually about nuclear weapons or war, instead of telling people that's what they should be writing about.
The purpose of journals is to express the thoughts on your mind. So what if bombs and climate change aren't always on your mind? If they were and that's all you talked about, you'd be a rather boring person.
But I do get what you're saying, but I don't think people are 'obsessed' with things like this.