No discord currently, but I may look into it if the game keeps growing. In the meantime, please let me know if you have any questions and I will be happy to help! Also, you can comment in the main section of the game (there are a bunch of comments there) and someone, either me or a fan, will jump in to help. Thanks!
Thanks for the support. Nope, no map. I know the game doesn't do a lot of hand holding which was my intention, I wanted the game to reward exploring and trial / error. It's a throwback to the RuneScape Classic and Minecraft style of gameplay where it drops you in and let's you go immediately. The help button mentions the importance of the subway system / stairwell system to encourage the players to find new areas. I would be happy to help though!
As for strength, that is a combat skill, along with Hits, Accuracy, Defense, and Agility. They can all be leveled by engaging in combat with enemies in the gang area (using the subway system).
Let me know if you have any other questions, thanks!