Yandere Level: Based on a scale of 1-10, the yandere level describes how yandere a character is. A level 1 yandere would be a yandere close to borderline who only does a few minor yandere things like just saying a couple of yandere lines and just showing a few signs of yandereness. A level 10 yandere would be on the total opposite side of the spectrum. A level 10 yandere would be one who kills others around their love interest and/or kills their love interest.
Yandere Meter: The Yandere Meter corresponds to the Yandere Level in that it describes the extremeness of the yandere. A yandere with a level of a 1-3 would be described as a slight yandere. A yandere with a level of 4-7 would be described as a moderate yandere, and a yandere with a level of 8-10 would be described as an extreme yandere.
Slight Yanderes: Consist of those who say or think yandere things, and who are possessive or obsessive of their love interest enough to call them yandere.
Ex: Manabe from Hakuji
Moderate Yanderes: Those who do yandere things like stalk their love interest, manipulate them, confine them to their homes, etc. You know, the usual yandere behavior.
Ex: Jisoo from Dandelion
Extreme Yanderes: Consist of those who murder. They are the ones who kill those in the way of their relationship, those who try to hurt their love interest and/or even kill their love interest.
Ex: Onyu from Metronome
*So there you have it for the Yandere Level & Meter. These two along with the type apply to the yandere while the rating applies to the work as a whole. So now that you know what the Level & Meter is, using my example from before, you can see what the new system of describing yanderes is like.*
*As you can see, even though the rating for this game is a 1, the level of the yandere in the game is a 10. That is because the yandere in this game kills off his competition and in the bad end kills off his love interest, which makes him an extreme yandere.*
Note: Hopefully now the way I rate yanderes makes a little more sense. I feel like this is a good way of doing it since now you could see how yandere a character is and how well the quality of the work is also ^^.
P.S: I don't do Levels, Meters or Types for Music Videos, only Ratings.