I dont think they will pursue "inactive" ones with their pseudo legal DF tactics.
Inactive ones have become un- indoctrinated and would be more likely to sue or threaten legal involvement if they were inconvenienced by little men in suits at their door.
The only way I think they would mess with a non involved fader would be if they sense the fader is attempting to lure away an active member. Im sure that would fit their broad based potpourri definition of "apostasy" somehow.