Launching tomorrow — what's the worst exploit or bug someone found in your game before you did?

Hey, I'm Dawid, the solo dev behind Baseplate — we're scheduled to launch here tomorrow (an agent that playtests your Roblox game in Studio and audits RemoteEvents for exploits).

While building the exploit-audit side of it, I read way too many stories about RemoteEvents nobody validated: free currency, teleporting into staff-only areas, duping items, the usual chaos.

Not trying to pitch anything in this thread specifically — just curious: what's the worst bug or exploit someone else found in your game before you did? Always curious how other builders (Roblox or otherwise) caught theirs, and it'll probably shape what we check for next.