Pacifism is a type of hindrance/disadvantage/flaw that works very differently in different types of games. In most games I play or run, no-one would take the pacifism unless there's a work-a-round against it's limitations - and I can't blame anyone for that, as these games usually have at least one combat each session, and usually everyone's most eagerly waiting for those combats! And they often are the most exciting parts of a game session.
"My character is ready. What? Oh, I need to get some flaws to pay off all the extra stuff I've already picked. But my character is perfect... Now, what flaws would have least effect on my character?"
Sounds familiar? All too familiar to me. Most of my players want to think of all those munchkiny statistics and features first, and then, if the system has a mechanism for negative features (flaws, hindrances, disadvantages, whatever they are called), they try to find something that doesn't hinder their character. I confess, I'm guilty of that too.
In a recent discussion about roleplaying mechanics I heard an opinion mentioning that character flaws should be a disadvantage and therefore rewarding well for playing them isn't something that should be done. My way of looking at flaws is completely opposite. While flaws are in general supposed to be a tool of balancing (or in practice min-maxing) characters, they work best as a tool to bring atmosphere, good story and drama to a game. And for this purpose, they work best if players want their flaws to cause them problems.
These hindrances and skill adaptations are meant for a game where pc vs. pc conflict is good, even desirable. Players should understand that they should play their characters with feel rather than optimal efficiency - and if they do should be rewarded with bennies. These flaws can get pc's in quite much trouble, so an additional benny use for creating small story twists works well with them.
This tool is meant for inspiration in character creation, both pc's and npc's. You easily choose the 'safe' options' unless you are presented suggestions, which may get your imagination running and give birth to a refreshingly different character. So if you want inspiration for a new character