Very good points! Intent can be tricky, since good intentions quite often go badly. Defining "badly" even becomes problematic as well (badly for who - me? them? the collective?). I think one of the problems with manipulation, is the intent is inherently selfish (to achieve your own goals/agenda), with the target's well being/free agency being a secondary consideration. However, it is definitely challenging to find the line between persuasion, cultural norms/good manners (e.g., remembering someone's name, making eye contact, etc.), and manipulation.