Document Freedom Day

Document Freedom Day will be in a week.  What is DFD?

According to documentfreedom.org , it is:

"the international day of Open Standards and happens every year on the last Wednesday of March. It is a day to come together and raise attention towards the ever growing importance of Open Standards for all aspects of our digital communication and information accessibility."

I remember that once, I celebrated it sending to all my colleagues a "freedom test".  It was just a regular mail with a short explanation and an .odt file.  If they could not open it, they could realize that they were not free.  My small campaign had a modest rate of success, at least to make people question their choices.

I wonder if I should do something similar this year...