I'm planning on posting some writing of my own, but before that I'd like to get a bit of clarification on some things regarding how to tag my stuff (it's likely going to be a collection of shorter stories, so tagging will be on a case-by-case basis rather than at the top of the thread).

- What does the "snuff" tag actually stand for? I see it on a ton of stories, and I know what a snuff film is, but not how the word applies to writing, and consequently if I should use it.
- Are "Con(sensual)"/"Non-con" used only in regards to sexual intercourse, or also (or maybe especially) to denote willing/unwilling death/gore/etc?
- Is a short, half-sentence, mention of someone pissing themselves on death enough to warrant the "Scat" tag, or is that unnecessary for such a minor thing?
- Slightly related, how exhaustive should the tags be in general? Or what are some common tags I should be sure to include (if they apply)?

Thanks in advance for any helpful answers (as well as any other hints/advice for properly tagging stories).