Whatever happened to April Fool's Day on the SDMB?

Now that it’s a day or two past April Fool’s Day, the truth can be told. There was indeed either something or nothing going on, and you, Czarcasm, walked right into it.

This was best explained by Raymond Smullyan in the opening paragraphs of his book What Is The Name Of This Book? (this link gets you a PDF of the full text of the book). Smullyan here tells of the day he fell for the same prank you just fell for:

Mind.

Blown…

I absolutely love this book! I Had a copy growing up, which disappeared somewhere between adolescence and adulthood. I finally ordered myself a replacement off of Amazon a few weeks ago…
…so why didn’t you tell me last month that I could download the whole thing for free?!?

You haven’t been paying attention.

http://boards.straightdope.com/sdmb/showpost.php?p=16998444&postcount=55 (Jan. 8, 2014).

http://boards.straightdope.com/sdmb/showpost.php?p=17185622&postcount=27 (March 11, 2014).