I'm a bit worried as well. The idea of this could cause less love and more people wanting to be noticed. Suddenly, pseudo-loving messages appear everywhere that attempt to be eloquently worded or profound simply because they want to be noticed. Many of us, if not all of us, are attention horses some of the time. This idea could spell disaster in the long run.
That being said, I do believe it is right to recognize certain great things that have been said, and having them all collected in one place is brilliant. I just don't know how to go about doing it without bringing out the inner-attention horse in ponies/making ponies sad for not being noticed. (Writing from the perspective of, not an attention horse, but a looked over brony who gives advice and is oft ignored.)