Well it is really a general complaint but that is the thing that sparkedit, yes. There are many things not to like about it all coming out at once. Starting with the fact that it means that we will need to wait like a month at the very least to get at the second half of the season. That is a month in addition to whatever we would have had to wait otherwise. And what's more, I was enjoying watching it on a weekly basis: I have a friend in Japanland that I would watch it with via the internet, I hung out in an AIM chat with a bunch of other Avatar fans every friday for squeeing purposes, and the aftermath of a new episode on 4chan is always awesome. It was part of my weekly routine, and it was good.

And man, Avatar is not One Piece. One's enjoyment of it is not enhanced by watching it all at once. The enjoyment is only shortened.

Also, this is going to fuck up the ratings, which not only makes further seasons less likely (and yes, milking it out would suck, but no matter what the story of Aang and Ozai is over at the end of this season, so anything further would either be about them, only older, or be a completely new show set in the same world, either one of which could be win), it also hurts the chances of other shows being made in the same vein.