I guess I came down too hard on the deities coming into being post world gen. However, gods being created by dwarves worshiping, or dwarves worshiping to gain an exploitable buff I'm VERY against. Stuff like that is cliche fantasy, something Toady is trying very hard to avoid.
That's not true. Toady One has said that is goal is to make Dwarf Fortress a cliche fantasy
generator, rather than one specific fantasy cliche.
Tropes are important to dwarf fortress. Armok 1 didn't use them -- it was mostly just randomly-generated creatures. And it didn't work, because people had no way to relate to those creatures -- you can have some randomly-generated monsters, sure, but you also need to have elephants and cats, so people will understand the implications of what they're looking at. The concept of a "Dwarf Fortress" itself is all about using fantasy tropes to make something that will be immediately recognizable to players despite being all ASCII with very little text.
Clap Your Hands if you Believe dieties are another common trope in fantasy. I do think they have a place in the game, though not necessarily in every generated world.
I think it's a huge mistake to focus on this idea of "originality" that some people fall in love with. They want Dwarf Fortress to be this unique and special world with its own distinct rules you see nowhere else. That sounds great at first, but when you think about it, it's actually the opposite of what Dwarf Fortress is about. Making it into a unique world that ignores all tropes in favor of its own special conventions means that you are tying yourself to
specific conventions -- it means that you're no longer making a fantasy world generator; you're making one specific fantasy world.
And that's not the goal of Dwarf Fortress. It's not supposed to be one sparkling unique fantasy world; it's supposed to be a generator capable of producing limitless fantasy worlds. Doing that requires looking at the tropes that make up cliche fantasy, dissecting them to understand them, and then implementing them into world generation so they can all show up, in one way or another, in some of the worlds Dwarf Fortress generates.