What is Reddit's opinion of A Dictionary of Shakespeare's Sexual Puns and Their Significance: 1989?

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As a (not exactly relevant) side note: if you have read a few Shakespeare plays in full (I read all of them), you would know that Shakespeare is all of vulgarity and insults, especially in comedies. If you watch a performance without studying the text, it is likely you missed many of them, even if the play is performed in the original English text. During one performance I was laughing very hard while the rest of the audience was dead silent. There are books about them, like this: https://www.amazon.com/Dictionary-Shakespeares-Sexual-Their-Significance/dp/0312126778

If I understand correctly, watching plays was a leisure for the "general public" in 17th century, like watching operas in 18/19 the century and a lot of the 20th century, not something that is often regarded as "elite" or "high-class" today. Which are like... stand-up comedies? It is natural to expect some vulgarity there, because, well, the audience like it.