Why would one need a conference to discuss a process that should be explainable in 5 minutes. If you can't reasonably explain your development process (agile or not) in 5 minutes, it's broken. If it takes you hours to explain your process, how many days does it take to implement and how much time is left over for actual development? I think most developers see through the bullshit of certified scrum masters and other such nonsense and its detrimental effect on productivity and don't want to waste even more time on this.