I've been tossed out of stories for all sorts of things, from bad fundamentals to overuse of tropes (I want to ban the word "lemon" from any and all SGA stories *unless* it has a bearing on the plot. And I managed to write entire series of Sentinel stories without once mentioning eye-color, or even the word "Guide.")
This time, I was tossed out because of *formatting*. The sans serif font was perfectly fine, as was the dark brown text on white. Neither would have been my choices, but they were perfectly readable.