Isn't that the purpose, sharing information and gathering different perspectives. At least that is my goal with all types of communication. Maybe writing for yourself is some kind of therapy but that is what journals are for, not public mediums.
Discussion
Okay, I’ll take that premise. But I think the hurdle for writing for others is “what do you have to say that is unique?” … if you don’t have anything unique to say then I would challenge that you (1) should write for yourself or (2) should not write for others at all.