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The most idiotic rejection reason so far

Hi All!
Let's have a fun and post the most idiotic rejection reasons.
The weirdest reason I've came across so far is:

"we have decided to focus on papers which are related to previous work published in our journal. 
And this does not seem to be the case with your paper since you are not citing articles of XXXXXX"

This God-forsaken journal, which nobody is reading, publishes only papers that are citing it!
gpt
I once had a rejection like "the results of this article are solid but unsurprising. It would be more exciting to see X or Y." 

X was actually in the article, and Y was a hugely important open problem that, if we'd solved it, we'd have submitted to a much fancier journal than the one who rejected us.