why i get tired of people sharing feel-good stories on fb

https://www.facebook.com/FrankSomervilleKTVU/photos/a.394744753922191.92927.162404453822890/1186833578046634/?type=3&theater

Nice story, right? But look at the last three sentences.

"Someday I'm going to do something like that.
I can just feel it.
And it's going to make me so happy."

So many of these stories have crap like, "I saw this homeless man outside a restaurant, and all these people ignored him, and I bought him a meal, and he was so thankful. It made my day." Or "All this woman needed was someone to talk to. I was happy to be able to be there for her." 

Whatever happened to not letting your right hand know what your left hand is doing? Some people say that they're not saying this to toot their own horns, they just want to encourage other people to do nice things, but then why not just have a post with a few ideas of nice things to do, encouraging people to be aware of opportunities to do them? Why does it have to be all about "me"?

And then there are times when they post pictures or video. I always want to ask the person if they had permission to do so. Some people don't want people to know they're homeless or going through a hard time or whatever. Must they have their faces plastered on facebook so that you can have visible proof that you are a good person? In this particular case he appears to have had permission, but so often I'm afraid the people don't. 

Yes, we need nice stories. With all the negative out there, we desperately need to hear more positive. But can we please do it in a non-self-congratulatory manner? I get so sick of Americans sometimes.