When people have problems with others why do they so seldom talk to them?

Oh, yes. That happens a lot. Online and in real life. What comes from that is a lot of gossip, which can hurt a lot of people. I prefer to just have a personal discussion with the person. And if it is in person, it doesn't hurt to take a third party so they can be a witness as to what was really said.

A lot of people don't like confrontion or to make others feel bad, so its a touchy subject. People want to talk to other people about it to get it off their chest and maybe pick up a new perspective.

Most people are too immature to have a decent conversation with someone they have a problem with. I think it says how shallow the relationship is if you can't discuss things with one another. It's amazing how many lost friendships happen because of this.