Well, first off, you asked earlier if I could explain parroting in a more step-by-step kind of way. Your question motivated me to renovate my guide, which had a lot of redundant information in it, I realised. So I went ahead and did that.
Feel free to have a look.The ethics thing was basically that some people have rather high opinions of tuppers, probably due to how fond they are of their tuppers and how real they feel to them. Those high opinions are stuff like "you should/shouldn't do X or Y with your tupper", whereas I'm of the opinion that it's limiting to think along those lines. I summarised my opinion in this post once:
Solution: stop treating imaginary friends as peoples. Fewer repercussions, fewer implications, fewer expectations, less frustration, less disillusion. Treat imagination for what it is, for the sake of simplicity and practicality: as manufactured visuals, sounds, and other sensations, and nothing more. No rules, no roles. Much easier.
What I meant by autonomy is that it's the only thing that really makes the whole tupper concept "unique". You can have imaginary friends that don't feel autonomous, but then they wouldn't really qualify for being called a tupper. Autonomy is a subjective feeling, of course, but that's okay; we don't have anything else to go by but people's anecdotes, and there's no point in trying to prove tuppers or find out "if they are real" or something.
Also, I'm actually Charlie English.