The first key requirement of the community is that they read the help pages. The guide which is presented to anyone as soon as they sign up for a site. There are lots of interesting pages on how the various aspects of Stack Exchange work, including voting and flagging.

For reviewers there is only a very short list of broad canned reasons to close, and for many questions, more than one of these can be applicable, hence the system allows closure from votes for different categories, if they total up to 5. And it doesn't matter if folks voting to close don't agree on the exact reason - they can all be correct - your point 2.

If Opinion-Based is the reason for closing a question, that is down to the question, not the answers, so I'm not sure your 1st point is relevant.

Once closed, the message to the OP for closure is very strongly around editing to meet site requirements, and while it can be very helpful to leave a comment as to reasons for a particular vote, we absolutely do not demand it - that is one of SE's core tenets: voting should be anonymous.

And both fictional and speculative are rather heading towards opinion-based. Speculative questions about what could be done with x amount of money are not going to have a definitive answer, so are tricky to fit in the Stack Exchange model, which pushes for strict answers to strict questions.

The first key requirement of the community is that everybody reads the help pages and the guide which is presented to anyone as soon as they sign up for a site. There are lots of interesting pages on how the various aspects of Stack Exchange work, including voting and flagging.

For reviewers there is only a very short list of broad canned reasons to close, and for many questions, more than one of these can be applicable, hence the system allows closure from votes for different categories, if they total up to 5. And it doesn't matter if folks voting to close don't agree on the exact reason - they can all be correct - your point 2.

If Opinion-Based is the reason for closing a question, that is down to the question, not the answers, so I'm not sure your 1st point is relevant.

Once closed, the message to the OP for closure is very strongly around editing to meet site requirements, and while it can be very helpful to leave a comment as to reasons for a particular vote, we absolutely do not demand it - that is one of SE's core tenets: voting should be anonymous.

And both fictional and speculative are rather heading towards opinion-based. Speculative questions about what could be done with x amount of money are not going to have a definitive answer, so are tricky to fit in the Stack Exchange model, which pushes for strict answers to strict questions.