First question was definitely Opinion-based at the lead, but the body was not.
There a few issues in this question that need to be addressed:
It's a second hand question
The person with the issue isn't posting. It's someone else. This can create a translation error for the problem as we don't have a first hand account of either side of what's actually happening. That makes it hard to answer in general.
The lead question requests ideas on how to handle
Which is definitely POB, but the body is much clearer in their question of asking for Good Subjective experience.
An easy fix for this is to update the lead to reflect what's really being asked in the body.
This resolves the question from being POB, but we'll need to watch the answers to make sure they stay Good Subjective.
This may also be an issue of worldbuilding
Possibly generalizing this question about is worldbuilding something the DM does alone in a box or with their players is something to consider. I have a feeling this section belongs in an answer as a frame challenge, but if OP is here, then I'd like to hear their thoughts on if this was the core of their question.
In general, I think we also need to be careful on adjusting questions to fit the stack that change what the person may be asking. Yes, we can make a lot of questions "fit", but I think it's more important to identify what the core question is, see if it's stackable, offer different questions if it's not - but just shoehorning a question into stackable doesn't necessarily solve the original question's problems even if it allows us to answer it.