Someone suggested:
"Russian provocation?"
But apparently not:
"This article was posted on the Ukrainian website, it was written by Ukrainians. Please believe us that many [Ukrainians] would agree to join Poland without hesitation. Which, of course, would be rather unfavorable for us [Poles]. The article is clearly anti-Russian. The author even states that Ukraine has never been part of the 'Russian world'."
And:
"Journalists of the Ukrainian website encourage the dissemination of the idea on social networks, which they think will make 'a referendum in a year or two'. The text of the proposal can be found at: ua-reporter.com."