Our sexual preferences (whether they be vanilla or BDSM or anywhere else on the gettin'-it-on-spectrum) both reflect and motivate a lot of our thoughts and actions. In my case, I don't really think a lot of people need to know anything about my sex life, even the vanilla bits. On the other hand, if you're the type of person I am close enough with to discuss sex to begin with, or if you're safely on the other side of a computer screen, I don't see a ton of reason to hide away the kinky parts. That being the case, it's difficult for me to say I get "exasperated" or "angry" over the privacies I keep or don't.
Frankly, I consider myself one of the lucky folks when it comes to being able to share or explore the serious, curious, or interesting parts of my sexuality - Lifestyle folks tend to like to talk and share and have communities like this one and munches in r/l devoted to doing so. We know this Lifestyle requires people to be informed to be safe and happy, so we network amongst ourselves really well. We ask a lot of questions, we delve into our sexuality a lot deeper than most.
Not a lot of my vanilla friends have such an array of resources and aren't nearly as comfortable when it comes to discussing what makes them sexually tick. THAT would make me exasperated and angry a lot faster...