Hello,
I'm very glad to know that you loved the game even with theses issues. Some of it will never be fixed, simply because I'm slowly moving out to others projects, and while theses issues are annoying,it's not (generally) game breaking. Still, I'm working on a new update, and I'm fixing what I can in the meantime.
For your questions:
- Theses items can be sold to the shady vendor to gain some money. To be honest, it's a leftover of early development where I was trying to figure out how to gain money,and I didn't bother to redo theses items.
- I think that I never tested doing caregiver first so it might break things. I'll try to reproduce it.
- It depend at which point you get to the art studio : you first have to collect three things for Ryan, after which you can hunt his memories.
- As of 1.0.0 you cannot free them but this might change in the next update.
Cheers