Well let's point out that those are not the same meaning of code. There is a difference between a word that is chosen specifically to prevent outsiders from understanding and a word that is used in a certain group. Yiff is used by furs in the fandom but is not used so that non-furs don't know we're talking about sex.
I'm not entirely sure I know what your dancer saying yiff is meant to illustrate. The word has fewer negative connotations, which I think we agree on. It doesn't get used outside of the fandom so there is no baggage coming in from other groups. That doesn't mean its fine to use in any situation. Obviously talking about sex at an event like that is not appropriate, regardless of what word or metaphor you use. I see your example as someone with a poor guess as to what's appropriate in that setting rather than any failing on the part of the word. Frisky may be more socially acceptable than yiff but it would be wrong to say "I'm feeling frisky" before a dance at a funeral. The word has very little stigma but the topic is inappropriate in the situation.
But when I look at your TL;DR it seems like we do agree, which is perhaps why I find your post confusing. I never mentioned using yiff as a way to talk about sex in public and I'm not aware of that being the case.
"If all mankind minus one, were of one opinion, and only one person were of the contrary opinion, mankind would be no more justified in silencing that one person, than he, if he had the power, would be justified in silencing mankind."
~John Stuart Mill~
Well let's point out that those are not the same meaning of code. There is a difference between a word that is chosen specifically to prevent outsiders from understanding and a word that is used in a certain group. Yiff is used by furs in the fandom but is not used so that non-furs don't know we're talking about sex.
I'm not entirely sure I know what your dancer saying yiff is meant to illustrate. The word has fewer negative connotations, which I think we agree on. It doesn't get used outside of the fandom so there is no baggage coming in from other groups. That doesn't mean its fine to use in any situation. Obviously talking about sex at an event like that is not appropriate, regardless of what word or metaphor you use. I see your example as someone with a poor guess as to what's appropriate in that setting rather than any failing on the part of the word. Frisky may be more socially acceptable than yiff but it would be wrong to say "I'm feeling frisky" before a dance at a funeral. The word has very little stigma but the topic is inappropriate in the situation.
But when I look at your TL;DR it seems like we do agree, which is perhaps why I find your post confusing. I never mentioned using yiff as a way to talk about sex in public and I'm not aware of that being the case.
"If all mankind minus one, were of one opinion, and only one person were of the contrary opinion, mankind would be no more justified in silencing that one person, than he, if he had the power, would be justified in silencing mankind."
~John Stuart Mill~