The seminar is intended for all open source users to exchange their experiences and the directions of developing open source in Thailand, in particular the role of community.
For more detail, visit blognone.
I would encourage you to go to share your ideas and stories, even though you are against the development/use of open source. I am sure that the organizer would like to hear various perspectives. (It is highlights that it is not a seminar about Thai ICT minister.)
It is all about community and collaboration.