There are many and some of them are just things I've decided to add on because I'm not very smart like that.
After WoDMod1 finished I started hacking on a dice system I'd written for AER two decades ago x_x when I was roleplaying a lot more. It mostly worked out fine when I was playtesting it with the friends I roleplayed with frequently back then because it was a fork of World of Darkness with a lot of my fudges and homebrew built in (it's actually more or less the system I run now when we're playing World of Darkness, just closer to the original than my fork so the children reading the sourcebooks know what's going on).