This would definitely be nice, as 70 combat isn't too crazy a stretch to ask for. Given people would make a lower level then grind wildy slayer which in turn would give incentive for other players to make a low level pking account to kill said low leveled wildy slayers. As someone who actually goes into the wilderness often to kill callisto (with a 99 combat account) I rarely get attacked anyways, and if I do get a targ I usually instantly log out to skip the target. Maybe if you were asking for like 40 combat or something I'd be a bit hesitant, but as this seems reasonable I don't see why not.
