I'm sorry, that who rant made me laugh.
I never got into her writings out of Animorphs, so I can't say about the other stuff but:
1-Animorphs was not poorly written (least not the stuff by her hand)
2-If she's so bad, why read her stuff, lord knows no one is forcing you
For this ending, I was one of those who hated it at first, though 5 rereads later, I see it as being more than what was on the paper. Either way it brings the story to a close, or allows fans to continue on as they please. Some of the best ff begin right after that last line
And it's not coming back because, first off Animorphs is time sensitive. Changes in technology, culture and events would bar it from now being what it was; plus have the appeal of the series is they were kids. Having it them now, with them as heroes in their 20's; the secerts out, it can be there whole lives, it's not that huge element of having to be a hero.
And what's more, is they are not bringing it back because....it's done. There is no need for it to come back. Of course you could; but why? It's like how Harry Potter is done, yes she can do more people are clammering for more, but who want's to read "Harry Potter and the Ministry Application Test"?
It didn't have to end, but it did, and like it or not, it works
And why would you deliberately try and annoy someone who provide you something to do for years, at only $4.99 a month? that's just bloody rude