To give one example - Netrunner has (had, I guess) a mechanic called Brain Damage, tied to effects which in lore terms did just that to the runner (hacker) character: heavily damaged by nasty corp tech while jacked into the cyberspace, and having to operate with less capacity/limited resources from that point on. Pretty standard cyberpunk stuff.
Null Signal decided one day that the term is grossly insensitive and now purged from the game, and while they might've told you to print cards containing it up until yesterday, reading it off your cards is now considered literal violence and will get you booted off tournaments. If you're not immediately 100% on board with this decision, you are a morally deficient person and not welcome in the community.