Ugh, pepper. I was at a Christmas party last year, trying to talk to someone and finding myself becoming hoarse and having difficulty breathing. I couldn't figure out why until I finally found a pepper grinder nearby on the table. Once I moved it, I was fine.
I'm certain a bite of that black pepper cake would kill me.
I question sriracha as an "enduring flavor. It may have a lot of mentions in recent years, but that would be true of any fad item. To be enduring, it has to have a history of common use--which I don't think sriracha does.
BRAVA!