I guess it's bordering on being literal poison. Chilli peppers have evolved specifically to be inedible by mammals. So I guess being obsessed with hot sauce is not a toxic trait per se, but it's in the neighborhood.
More seriously though, I love spicy food, but not all food is supposed to be spicy. Leave other favours room to breathe as well.
A friend of mine keeps doing this. He'll pretend to be an expert of fucking anything, and you can generally tell immediately that he doesn't know shit. When he goes on about things that I actually do know things about it's unbearable, and of course his ego is too fragile to handle being told he's wrong.
We have a lot of impressive common friends with awesome general knowledge, and I frequently wonder how the hell we have the patience to keep him around. My general knowledge is shite, but at least I'm quite open about being ignorant.
He's hyper sensitive about social situations, yet introducing him to new people is almost always embarrassing.
Perhaps unsurprisingly, he is a professional psychologist.