15 years ago i used userscripts for ... kinda cheating at a popular browser game. i didn't do anything _really_ illegal, it just extended the UI. e.g. if you s

15 years ago i used userscripts for ... kinda cheating at a popular browser game. i didn't do anything _really_ illegal, it just extended the UI. e.g. if you sent an army to rob a village, it stored the type and level of workshops and calculated how many troops you'd have to send plundering the next time. it worked really well. next i changed the backend from local storage to a shared database and shared the script with a few friends from my clan. that kinda broke the game. we were incredibly successful but i also immediately lost interest, quit the game and killed the server.