If Masterson’s mother ran a non-profit that helped rape victims it would be a conflict of interest for her to write a character reference for her rapist son.
As it was here for Kutcher and it damaged his reputation badly.
Otherwise appreciate your post. There are a lot of interesting questions in it about human nature.
Personally, I think the church of scientology black mailed him into writing this. That Masterson spilled some dirt to his cult.
Ashton plays an idiot on tv but I don’t think he’s that dumb in real life. So my bet is blackmail.