FIS v RIS
Or as we all know Basic v Traffic.
The normal thing when flying VFR is see and be seen. A good lookout should be everyones aim.
If every pilot requested A 'Traffic' or 'Deconfliction' service it would be impossible to provide. The controller is limited to the maximum number of flights that they may accept for a service. Deconfliction being the most limiting although you must be flying in accordance with IFR to obtain a Deconfliction service. There is then a responsibility upon the pilot to request the most appropiate service for the flight conditions. Hopefully a controller may be reading this thread and provide the actual parameters in this regard.