The idea of being able to edit a statement shortly after it is created is a nice one. Maybe that's a better model for the debate than "edit objections", which is what I'm working on now. It's complicated to have to think about multiple edit objections, and edit objections that are applied and then reverted. Maybe a simpler way is let the author edit it for a few minutes after it is created (or until response are made to it?), similar to how gitter does edits. "Edit" doesn't really feel like an "Objection" anyway.