As stated above, I received them in a forwarded email a while ago. I will update the above node to credit them, as I didn't know the original source. Thanks for letting me know, and I will try to ignore the inferences in your post...:P
As per your comments below, thanks for the tip, dws!
For the record, I assume this was an innocent lapse.
Lots of stuff floats around on the internet without attribution. One way of fixing that for things that pass through your hands (and thus avoiding possible embarrasment if you get called on it) is to do a quick Google search. A search on "haiku death lost taxes" returns a URL to the salon contest as the 4th hit (along with a page full of non-attributions).