I would like to have an emblem right near the top of my profile that expresses whether it is for ERP or not at all for ERP.
I have characters, and plan to make new characters, who are not for ERP. However, open to ERP is currently sort of the site's assumed default. I can currently write in one of my description fields (trait description is the topmost) that my character is not intended for ERP, which helps.
This is, of course, implied by where I put Smut or Sex in my interests, but this is such foundational information I don't want this to be buried in a big list nor implied.
Further, I want to avoid potential mixed signals — I could, say, play a no-ERP-at-all mafioso character who focuses on dramatic stories about crime, corruption, drugs, sex and so on. You've seen these shows and they're fairly mature but they're totally capable of being aired on family TV channels. Sex could be a present theme and happen off-screen, and I might be able to signal "yeah this is fine" by putting Sex in my Yes column. However, that might lead people to believe I want to do ERP with this character, when the opposite is the case.