I've never understood this meme - restaurant isn't even a remotely difficult word to spell. I don't think I've genuinely ever seen anyone in the real world past first grade who misspells it.
Why do we keep regurgitating these weird pop culture opinions with no basis?
I put this right up there with acting like anyone has ever actually given a shit if another person eats pineapple on pizza or pretending to dislike the word "moist."
We don't have to repeat shit just because we heard somebody else say it.