I need help with this riddle?!

I need help with this riddle?

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Did you know that 80% of UCSD students
could not find the error above? Repost
this with the title "Find the error",
and when you click "Submit Post", the
answer will be really obvious

the way everything is written resembles a sign post:
the numbers, listed vertically is the post
and the question,i.e,"i need help with this riddle?" is the sign.
that's why when u click "submit post" it should become obvious.