well I'm not going to do all of those as it's A LOT of work and I'm trying to work at a steady pace but.
1. Wish it was simple but can't do that atm
2. yes, already planned should come out in an update or 2
3. the max value increases by 5 every time you stuff a character
4. We're working on that but I don't want to reward the player for just stuffing a girl, the game play would be too repetitive
5. Interesting, I'm sure I could write something with this information!