The thing with mindreading and, then loading a save is that pretty much any mindread that gets you any benefit (whether immediate, or unlocking/revealing/etc something you'll find later) requires having done the mindread to obtain.
For example, if someone thinks about their secret item stash, that stash won't exist without having mindread them.
The only mindreads that don't work like that are essentially flavor text, and usually priced much, much lower.
