Dear David, I'm sure you have plenty of reasons to choose to use EasyChair. You asked for our feedback about the call for proposal. Mine is that a potential speaker would possibly be annoyed at having to register to some third party site to just send a proposal. I know I would. No matter how great that site is or how easier it makes things for the organizers. It's just my opinion. Have a good week-end, -yves PS: I would still like to know how to delete a user account there: I don't see any way to do that.