Thomas Shey
Legend
I can't say that I really understand this partial success discussion. Partial successes/degrees of success are just a perfectly natural thing and any system should support them to certain extent as they happen in real life all the time. Like in that jumping example not quite making it and ending up hanging from the edge of the roof instead seems like a perfectly possible outcome. Now if these mechanics 'create' completely new fictional elements that might not be even directly related to the thing the character is doing, then I can see it rubbing some people the wrong way. Like if a failed jump check caused new guards to 'spawn' etc.
Well, its partly a side topic, and turns on whether the baseline on the "succeed" side is "success" or "flawed success". For better or worse, some people don't respond well to the latter.
This has been brought up because at least most of the PbtA games used, essentially, "success with complications" as their default success; you can get more unmixed success with a good enough roll, but the system kind of doesn't want you to most of the time, because the "complications" drive ongoing play. And I can quite see how people really focused on player agency can (not necessarily will) see this as having an attempt to limit their agency baked right into the rules.
To what extent this is true varies apparently on the particular incarnation of the *World game and of course there's the big unresolveable debate about how many people react positively or negatively to that, but that's why its a subportion of the thread.