10+, I have been disappointed to many times from a highly potential story start of only 1-7 pages and the story goes on hiatus or gets deleted. at least with 10pages+ I can get into the story and feel it has a better chance of lasting.
As someone recently affected by the purge and went through my active reads to find the 404s (I am sure I missed some) though I have no way near 1,300 listed on my readers list. It would be helpful if their is an indicator that something got delisted, that is on your list.
Mister or Miss in the USA is appropriate; though Mister has fallen a bit out of usage in the last Decade or so. So is Sir or Ma'am though the last one may get you in trouble with certain very Politically Oriented women; especially outside the Southern parts of the USA, though sometimes Miss gets...
OOK, I take exception to this; any power that can be used to effect he world around you can be used in deviant ways. That is intent of use not the power itself.
Oh and this is similar to many of a cultivation novel.
Now days, most of the people you think are talking to themselves are on the phone. Heck, I saw a panhandler using blue tooth ear piece and a cell phone in lap openly while collecting handouts at the exit of a strip mall at the light stop.