I think everything went to kitten because we have a kitten fandom. I never had any issues with the Death Note, FMA, SNK, fandom, and look at the quality writing we received. Yet for Bleach, Kubo deleted his Twitter because of harassment from hurt character fans and some pairing fans that wanted more shipping moments. Then you have than you have Naruto were villains who don't deserve it receive more sympathy than actual heroes. I like Itachi, but holy crap the apologists are something, especially when you voice an opinion that isn't accepted by majority. And Sakura is pretty much the first character whose hate was large enough to decide her overall faith during the second half of part 2. I went to NF and looked at a thread about which character should been removed from the manga, and every other person who commented choose Sakura.
Than you have the pairing wars and so far this is the worst pairing war I have ever been in and made me decide to not get myself too involved in future fandoms.
I personally feel that if you have a kitten, spoiled fandom you will get kitten quality results produced. And it's worse when you own editors also have bad taste as well.