Glamdring:
A Deconfliction service does not provide any form of seperation
Quite right. Sloppy wording. Should be "aims to provide"
TS: if you're in uncontrolled airspace, the fact that you've filed an IFR flight plan makes no difference to your chances of hitting another aeroplane. In the UK I could file an IFR flight plan through Class G airspace and speak to no-one and receive no air traffic service whatsoever. I could be the guy coming directly at you.
NS