Thank you. We will consider the idea of a forum for exchanging opinions.
Now, regarding the setting, users are basically free to imagine whatever they like. I've just created a playground, so I think it's fine to let everyone be free. My personal assumption is that both elves and dwarves exist.
Within that, I think the concept of portals is excellent. It has the inclusiveness to connect the original worldviews each creator possesses, and there's no need to be overly sensitive about consistency.
I agree that depending on the intended vision, there could be both positive and negative aspects. However, I think it's best to let everyone proceed freely, embracing that uncertainty as well.
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