Calvin's Hobbies recently posted Evolution of Hello World. The challenge is unique in several ways, but the most revolutionary is that the definition of "valid answer" depends on other answers.
This inspired several more answer-dependent1 questions (they're still in the sandbox). However, as discussed a bit in chat, these questions have some problems. For example, the finding the relevant answer(s) can be tricky, so it's not easy to figure out what needs to be done.
What do you think? Should2 answer-dependent questions be encouraged?
1 These challenges have sometimes been called domino-coding. However, not all answer-dependent questions involve a chain reaction. One idea mentioned was a tree, where answers can depend on any previous answer.
2 I'm not really asking about the original Evolution of Hello World challenge. I think it's interesting and unique enough that it easily outweighs any of the genre's problems. However, I'm much less certain about having dozens more of these questions.