Hi,
I think the organizers might have thought that it is their FREEDOM(?!?) to use windows in the conference.
So please go and read free software philosophies immediately.
If u want to advice others not to drink alcohol, then first you should not drink alcohol. If u already drinking alcohol and advising others not to drink the same, then who will listen to ur words? And also this will spoil all the efforts of other GOOD ADVISERS
If u r a die-hard fan of those proprietary softwares, then please stay away from all free software activities..........dont spoil the free software philosophies any more
Regds, Yaanilan