A friend of mine told me that he once asked a priest if it was difficult to hear the confessions of all the awful things people did.
"No," the priest replied. "It's hard to hear of all the good things they do, and not be able to tell anyone."
And, the thing is, this injunction not to brag about good deeds goes beyond the silence of the confessional. Matthew 6:3-4 says "But when you give to the needy, do not let your left hand know what your right hand is doing, so that your giving may be in secret. And your Father who sees in secret will reward you."
Being ill has put a lot of strain on our family, in many ways, but we've been very blessed by a number of people who have given generously of their resources to us. I find myself really sympathizing with the priest -- I want the world to know how amazing these people in my life are! But at the same time, I know many of the people giving to us would not want their giving to be known -- even those with other belief systems are still doing it out of love, not a desire for recognition!
We live in a world that is very driven by outward appearances. Social media allows everyone to create a very public persona, and most people are aware that a lot of the messiness of life is deliberately hidden from these spotlights. But I think we forget how much of the goodness is hidden as well (or, at least in Christian doctrine, is supposed to be hidden). I love seeing stories about people helping out others, and I think it's encouraging to realize that there is far more generosity going on in the shadows than we'll ever know about in this life.