There is a high-level list of subjects in Mi Yodeya's scope on the "What topics can I ask about here?" page of our Help Center:
- Jewish law or practice (what to do or why)
- Jewish philosophy
- a Jewish text (explaining a passage)
- history of Judaism
- language used in Judaism
- general knowledge (science, etc.) as it relates directly to Judaism
Only the first item on the list relates directly to Halacha. In practice, if you look around Mi Yodeya's tens of thousands of extant questions, you'll find that they, indeed, span these subjects.
The first line on the same page indicates the basic assumption of this community:
Mi Yodeya is for those who base their lives on Jewish law and tradition and anyone interested in learning more.
That does not specify any specific denomination or community, but it does indicate that all answers will be from the point of view of Judaism. There are quite a few previous posts here on Meta regarding whether or not the only point of view allowed here is "Orthodox." Start with this one, and read posts linked to it. The short answer is "no."
The identity of a participant here should have no bearing on how content contributed by that participant is evaluated. Content should be (and generally is) evaluated based on how well it fits our scope and format, how interesting or useful it is to the reader, how clearly and engagingly it's written, etc.
One downvote indicates that one community member considered a post substandard along one or more of these axes, but presents an extremely limited view of the sense of the community.
Closure indicates that a question doesn't fit our scope or format in the specific way indicated in the closure notice. In many cases, the question can be edited to fit and then re-opened.
