After my ramble last night, I've managed to figure out the thing that annoys me and have finally managed to form a succinct point! I dislike the fact that complaining about live earth is a self-fullfilling argument. By that I mean that if everyone decides Live Earth is deeply uncool, then yes, it will be a complete waste of time. If, however, people get behind it, ignore all the little 'oh concerts for causes is SOOOO last season' losers, just enjoy it and get into the spirit of it, maybe it will actually be a success and help get the ball rolling.
So yeah. I really am done now!