I refrained from commenting so far to avoid becoming one of the naggers you mentioned, as I'm sure I had a few years ago on a different forum when you were writing this. This is hands down my all-time favorite abdl story and I've been checking in with it every so often for updates since you stopped writing it back then. Suffice it to say my heart jumped when I saw you had actually updated. So I've been following along since and I just wanted to thank you for coming back to it after all this time and sticking to it and congratulate you for finishing it.
I do have one question about a loose end though. Earlier in the story he's given the learning teddy bear which is stated to play lessons while he sleeps. His mom insists he sleeps with it, and the very first night he does he has a dream involving the teddy bear and wets the bed for the first time following the events in the dream, which his mom is totally unfazed by. Later he confides in his babysitter that he suspects Cartoonimals is hypnotizing him and that's why he needs diapers. But more recently you said he just lost his potty training as he got used to his diapers. It seems strongly hinted at that he was being made to regress somehow, not just failing to keep up with everything in the new town. Am I reading too much into this or is this just a thread you decided to quietly not follow up on?
Anyway, thank you again for coming back to finish it. I hope that you decide to try your hand at writing again sooner rather than later, but understand that life gets in the way.