Back in the day I played one of the first mmorpg called “The Realm”
It was pretty goofy but lots of fun, me and my brothers had the shittiest internet connection and it would drop all the time, we accidentally learned that if our connection dropped right as we handed an item over to another person or stuck it in our chest at home, we would have 2 copies of it when logging back on
We told a few friends and it instantly got carried away, people ended up duping billions of gold and thousands of the rarest items, fucked up the whole game economy
Somehow they figured out that me and my original friend I told were the originators of the dupes, we were playing one day and random got teleported into this moderators cave where they grilled us on how we did it, and what not, we were so scared
They had to wipe all the money out of the game and start over
They also put us on a 2 week jail sentence, which was pretty hilarious, they built a jail cell in the middle of one of the main town squares and put me and a few of my buddies in there, we were still allowed to log on and chat but people would come by and yell at us in our cell for fuckin the game up

it was awesome
I miss being 13