Lore is essentially familiarity with the specific subject that affects skills, traits, features, and powers that are related to it. It is pure knowledge, it does not benefit from being clever or smart. It does not expand or improve over time with life experience – only more focused study can improve it. Do you get proficiency bonus with lores? No; Ability bonus? No Obsessive Student gives you half your Proficiency Bonus because you are assumed to be seeking out materials related to it (books, story-tellers, online materials, media materials, etc.) to improve the confidence and precision of the knowledge over time. Lore Knowledge levels follow the standard Learning levels.
Passing Familiarity: They reflect a very small bit of knowledge of a particular subject detail, person, a particular time and/or a particular place. These are often acquired through casual in-game experience as Rewards. The Game Master, Setting, and/or story elements will determine what is relevant and/or appropriate.
Misinformed: There are cases where culturally, willfully, or otherwise, the normal knowledge of a subject that would normally be part of exposure, education, or just common conversation is woefully wrong or they are completely ignorant of it. It is based on nothing more than speculation, rumor, myth, and biased assumptions from stereotypes/cliches. In such cases, the Lore will be noted with a penalty to any checks: [Example] Lore: Elves (-2).
SIGNIFICANT EXPERIENCE: Reference works and basic exposure alone may only provide the foundation for gaining a [mechanics based] advantage. To reflect the practice and experience to gain that benefit consistently, typically requires a cost in Character Points.
COST/REQ: Must be experience and/or study. CP cost = the bonus granted
The bonus is usually used as part of a Intelligence (History) check that relates to specifics of the knowledge.
These are generally self explanatory and do not require in depth explanation.