While I today generally do not blather about such things, there were times in my life I felt it extremely important to share them proselytizing. Since I am not proselytizing, it's no longer something I do, but I understand why prophets do. Some knowledge so gained is certainly only personally applicable, but it is difficult for me to criticize someone for sharing what they are absolutely certain is true just because I disagree it is true.
I see that as an opportunity to reconcile contrary understandings and create agreement, which I consider a good thing.
Don't you?
That's exactly what I'm doing, but I make a point to couch most of my statements in a framework of logic and try to avoid unfalsifiable appeals to authority (like "god told me").