I didn't downvote you
but I think I know why those four people did. Probably something to do with the fact that you falsely claimed that the oligarchs in question are anti-Russian. Even the RT report you link to wouldn't go that far and it's RT.
(For the uninitiated there are pro and anti Russian groups in Ukraine — they tend not to get along.)
In short your claim of fake news is, surprise, fake news.