Hmm, I don't see this as someone trying to make it about themselves. It's how people connect and bond. Shared experiences. And, it will give them a person they can bounce questions off of, or just not feel so alone.
Every single person on this board practically has had a moment where, "this has happened to me too" and they have shared.
I was recently directed to someone on this board who shared an experience with me. While her experience was much more grave, she was someone I could ask questions of -- did this happen to you? how long did this last? etc...etc... It was nice seeing someone who had gone through the same thing I did and seeing they did come out the other end doing well. It's a give and take conversation about an event. And a way to say, if you need to talk to someone, I'm here.
I guess it's a matter of your perceived motives of another. I just look at that as a way to say, You aren't alone.