Great feedback from you as usual.
The game is starting to shape into something nice already. The location of "Dirty worshipper" quest is in a hidden area, but from some feedback I've realized that there's really no clues how to access the secret area. That's why getting feedback is important. I'll address this in the next update. You can barely see a hidden door looking at the map in one of the areas.
The guest list is good, but I agree on some of your proposed ideas. Keeping track of every single NPC-type the player has interacted with might be too much for me, I have to think about it. It would require a whole lot more of data to be saved.
The map was made to help out people who might have hard time to know where entrances to areas would be. I agree a player marker would be very good addition, I'm just not quite sure how to make that.
I'm still enjoying making more updates to this game. If this year's Strawberry Jam happens, I'll make a new game for that and continue working on Club 129 after that.
I appreciated your feedback.