I'd like to stress again that I am speaking only of "skilled play" and not of skill. Those characterisations are orthogonal to "skilled play".I think one of @Manbearcat's contentions WRT DW (and I guess BitD) is that skilled play and RP/characterization considerations are NOT orthogonal because the game deliberately invests them with mechanical weight bearing on success or failure at tasks in the game.
He furthermore describes 'Win Cons' for these games in terms of successfully expressing certain preferred outcomes in the fiction, and in gaining rewards like XP.
@Manbearcat may be putting forth claims and commitments relating to whatever is to be collected up under the label "'Bearcat skilled play" (BSP). Perhaps RP/characterisation considerations are not orthogonal to BSP? Perhaps the "skilled" in BSP is intended to draw attention toward a framework for skill in which reaching preferred outcomes in the fiction is an element? I have been silent on those matters.
EDIT I suppose I am making one claim, however - that SP and BSP are not identical.