I see that it has been three days since the math version and two since the mathoverflow version, both with no replies as yet. It's getting on toward the time when trying it on a new site makes sense.
I'm an old guy---old enough to have used the USENET before there was a web---and some of my attitudes are, perhaps, shaped by the culture of the pre-web internet.
Those attitudes say that cross-posting is a form of prioritizing your desire for a large audience ahead of the desire of other users to see only a selected fraction of the available traffic as indicated by their choice of which [usenet groups|stack exchange sites] to read. That was historically interpreted as a kind of rudeness---putting ones own desired first it ones of the core attributes of rudeness.
Now, Stack Exchange isn't usenet, but the users have been polled on their opinions on this issue, and it is clear that the usenetesque view is dominant on the network.
We understand that you don't agree. Well, there is no harm in disagreement.
Which brings us to
I have suitably edited it to suit the interest of the audience in the site. In specific highlighted possible application in the study of topological solitons.
It is no longer the same question as I had posted on MSE or MO. So it can no longer be considered as a duplicate.
Frankly I disagree. You've made a fairly minimal set of textual changes, but you are still asking the same thing.
Assuming you don't get an answer elsewhere I'll reopen it sometime tomorrow.