Sharing in-game screenshots

Via AEIOU: Multitap is new video-game related webservice: is a service that allows you to share your in-game screenshots with your friends. You can rate, discuss and categorise your screenshots as you see fit. Do something funny, interesting, bizarre or impressive in a game, and share a screenshot! was designed to allow gamers to post screenshots of action during play, something we have done ourselves using forums and various image hosting services. (...) People are already starting to find out about it, and of course, suggestions are flying in on what features we should add…

Players upload their in-game pictures and comment on them. There are friends' lists.

Why do I blog this? I am wondering about the potential usage of such platform.