Let’s be honest

Let’s be honest: This Yahoo! Style writer has no idea that let’s is a contraction of let us and requires an apostrophe:

She also doesn’t realize that eleven years is not a wait, but a length of time, which might be a long time to wait for something. Maybe she thought eleven years is a long time to wait for an education, and dropped out of high school. Maybe if she had stayed in school she would have learned a little grammar, like matching a pronoun with its antecedent.