Reading this thread, I have realised I spend an inordinate amount of time thinking about what I will eat next.
I'm not sure it's my personality, but it's definitely a key driver and motivator.
I also recently got into fermenting, pickling and making chutneys.... and I am gluten free (coeliac), and just turned vegan which has been awesome despite the lack of bacon sandwiches...
I suspect I could be one of those people the OP is concerned about.
I mean everyone hates gluten free, vegan wankers don't they? I've seen the memes....
If it's any salvation, for me at all, I never try to convert others. That said, my mum and sister have decided to join me in trying out vegan after I regaled them with with the unspeakable delight I am experiencing with perfectly formed poops.
Dear god. I totally AM the exact nobhead this discussion is about. Shit. I also posted pictures of my pickles on Facebook. I am a food whore.