I don't follow. Does broadcasting this on the internet reduce the number of lives saved? The point of altruism to save lives, so as long as those are maximized, I don't see any "cheapening" happening.
"But when you give to the needy, do not let your left hand know what your right hand is doing"
A lot of charity is not for the sake of helping someone, but for the sake of making oneself to look noble, get publicity, or earn money (like those "buy X, then we will donate Y" promos).
Personally I don't have such bad feelings about that, as it is a win-win situation very often - those who need get something eventually. I can tolerate a little bit of hypocrisy in that case.
The reason I started giving to AMF was because a friend of mine posted about their giving to AMF. I would have been less likely to do so if I hadn't seen that post, so broadcasting probably led to more lives saved. Another friend of mine said he was also motivated to give by seeing the very same post.
Anyway, I didn't claim that broadcasting is positive, or has a point. I simply responded to the claim that broadcasting "cheapens" altruism.
The number of lives saved remains the same whether you broadcast it or not.
So, what's the point in broadcasting?