James, I hope you'll consider the negative impact this could have on Allan's perception in the community. Most will find it at least partially humorous, but others (see some of the comments below) won't recognize that it's not actually Allan making the joke.

With all the discomfort present in the TM community associated with the long wait for TM2, there will be a fair number of people who will come to believe that Allan used April 1st as an opportunity to give his user base the finger. They'll carry this feeling forward, never realizing that this was a spoof.