Here's a code example: I'm the author of a mod that adjusts the lipstick women receive from the "Beauty" trait. After my initial release, I was having requests from players telling me to remove the lipstick... on men. At first I thought it was an issue with my mod, until I looked in Paradox's code and saw there are literally zero conditions for which men receive lipstick. You could have an 80-yr old Viking pagan warlord, raping and pillaging, but as long as he has a Handsome trait, he gets lipstick. Once I discovered that, I had to take a step back. I couldn't believe Paradox was that lazy. I included a fix removing the lipstick on all men until Paradox codes some conditions, especially because Handsome traits are inherited, so the men don't even get to choose whether they're wearing the lipstick or not.