I don't know, maybe I'm a bit confused here but the definition of a fetish as I know it is this :
Fetishism falls under the general category of paraphilias, “abnormal or unnatural attraction.” Fetishism is a fixation on an inanimate object or body part that is not primarily sexual in nature, and the compulsive need for its use in order to obtain sexual gratification. Inanimate object fetishes can be categorized into two types: form fetishes and media fetishes. In a form fetish, it is the object and its shape that are important, such high-heeled shoes. In a media fetish, it is the material of the object that is important, such as silk or leather. Inanimate object fetishists often collect the object of their favor, and may go to great lengths, including theft. Fetishists smell, rub or handle these objects while masturbating or ask their sex partners to wear the objects; male fetishists may be unable to get erections without the presence of the objects
and most of the ones people are listing are definitely NOT under that definition. I've always understood a fetish is something that is not directly related to sex, but is often essential to the sex in order to get off. These just seem like a bunch of turn-ons, and pretty ordinary ones at that, especially on BL!
I could be wrong, but I would think a weird fetish would be more like requiring the use of mayonnaise in order to complete orgasm.
