And what is the ATC supposed to do when separating two IFR in E and a VFR pops up on frequency and commences to arrange separation with one or both of the IFR aircraft?
As a controller, I can tell you that controllers working E don't leave their separation to the last minute, so a VFR in conflict providing info about himself would be most welcome. Certainly better than the NAS cases where the VFR said nothing and created a pile of workload and stress for the controllers and IFR pilots.