There are so many complaints about FaceBook -there is very little, if anything, that someone could post without upsetting people!
It is about people presenting themselves the way they wish to be seen and of course they put the best.
I can't help thinking that the problem comes from having friends on there who are merely acquaintances or that you don't actually have any liking for, or care about.
The problem would be solved if you culled the friends to the ones that matter to you - even if you only got left with a handful. Failing that you could simply hide their posts.