Why? Because Nickelodeon doesn't care either. They didn't show commercials for new episodes- only showing one commercial after a new episode aired- they leaked new episodes onto the Internet or aired multiple new episodes in other countries before the U.S. on multiple occasions. We receive no new word, the overall quality has been on an emotional rollercoaster of disappointment, and Nickelodeon spends all its time advertising for formerly popular and good shows that jumped the shark.
Even the abominable site ruins the show with the horrible loading and uninformative schedule- for about a year now I haven't been able to see TV shows.
I can't bring myself to debate on forums or be interested, Avatar and Nickelodeon has ruined the show and because of that, I don't feel interested in visiting TV.com anymore.
I don't plan on leaving forever, but I wanted to let you know I won't visit often.