Yeah, I'm reading some of The ACS (I'm not about to read the whole thing because it's like twenty full-length pieces of writing) and it stands head-and-shoulders above the rest, if only because it's far more detailed than some of the single sentence "my series kicks ass because it does" entries. A set of characters cobbled together from random franchises with no thought to consistency between them, which is surprising given that most of the characters seem to be personas of Wiki members, so the author has full control over how the characters act and look without having to pay any regard to official canon.
Then again, I know nothing of the Nick fanonverse, and nothing of Nick in general, so the characters are probably infinitely more enjoyable if you're familiar with it. Take my opinion on the characters as the opinion of someone who honestly has no idea about the subject.
The writing itself goes into little detail and, probably because of the plot synopsis format, you get a basic layout of "this happens and then this happens and then this happens" and you're supposed to stop to imagine every event. Still, it's much more enjoyable to read than anything else I've seen on the wiki, and probably the best thing on there by miles.
That's my honest opinion on the series. Maybe it's a better experience if you read the whole thing start-to-finish, I only read like one paragraph each from a few episodes.
But there are people who like it, so why does my opinion matter? I'm not the one writing it. KM should be proud that he wrote it and that there are people who like it, and that should be enough to motivate him to keep going even if the meanies on that other site say it sucks.
EDIT: my first sentence was screwed up because I'm really tired. I meant to say that it *is* better than the other stuff on the wiki.