Wondering why some functions are locked to server only? Let me educate you on the dangers of trusting the client!
We dont want hackers messing with our stuff! Easy Datastore prevents malicious activity by blocking certain functions from the client.
If hackers could access functions like module.set(), they could give themselves infinite amounts of coins! We dont want that!
Remember than hackers can still access remote events. Remember to always verify that the remote event cannot be abused.
You can stop hackers in your game by always managing sensitive data on server scripts. Adding a sell mechanic? Set up a remote event, and validate the request to make sure hackers cant steal your data!