Thank you for taking the time to clarify this to the best of your understanding. It gives a bit more perspective for me too now.
I have noticed some posts I come across say cross posted and I can't vote, so with those posts I simply go to their blog and find the votable post, which I think is usually underneath the cross posted post as the original post.
I guess the mechanism is a little clunky but sure it makes sense, ultimate goal seeming to be more visibility, which must work or I wouldn't stumble upon so many cross posted articles.
I appreciate the explanation, I'll mess around with it.