No one needs me to rant about skill challenges again. I was going to go get some representative samples of my point to link to, but turn I ran into literally you and I having this same discussion:
I didn't want to derail this discussion, but there's a bit of an excluded middle between 5e's skill system and...You can probably approximate some of that via deep GM thought and work, and you can grab the "soft moves" that PBTA leans on and use them in a 5e game too, but as soon as things go to player ideations, "moves" the differences separate out. Hacking in skill challenges from 4e helps, but the math doesn't work as well (expertise breaks it) and the 5e skills are just not set up for the breath of player actions. So then you're back to a player looking at the DM for permission.
Below are some more times I lay it out if you care, but my point is the same as above. The choice is not between "DM makes up resolution mechanics" and "let's do an iterated 70%ish roll to determine what happens." The highest agency state is one where the player can make specific action calls that are better/worse at achieving the state they want than some other set of distinct actions. Skill challenges cut that off from the jump.
You said it was gone. It wasn't. It works differently, I certainly grant you that...but you do realize that this was this way because you could use Diplomacy to manipulate others' behavior, right? Skills are very powerful in 4e. Much moreso than 3e. (It still baffles me that 5e uses skill rules more similar to 4e, but almost everyone runs them like the limited, weak 3e skill rules, where doing anything remotely useful has a sky-high DC or is impossible because no defined DC exists.)
And one example does not "lots of stuff" make. If dismissal because of lack of citations for...
This is completely untrue. 5e's skill system looks nothing like 3e, setting aside the question of skill points entirely. 3e skill entries start with a...The skill points are not alike, yes. But actually using the system? Far more like 3e than any other system--including 4e, the one that the rules actually did get more-or-less copied from. I have no idea why people choose to run 5e's system as if it were 3e. But they do, much to 5e's detriment. Its skill system, especially if they hadn't utterly jettisoned Skill Challenges, could've actually been good.
Let's also remember the real point of all of this-- these checks are not the game unto and of itself. Their entire point is to vary the speed in which players acquire narrative advancement in the story they are participating in.
The entire game is a story that is happening at the table. That's why every single mechanic in the game has a narrative description layered on top of it-- so the players can imagine an interesting meaning for what these numbers represent that we are adding together all the time. A player rolling a twenty-sided die and then adding two numbers to it to...
Ah, I have read my responses to you from then as well and realized again we’re in such a fundamentally different paradigm it’s not worth spilling digital ink further.