Going to this post, https://steemit.com/investigation/@witnesswatcher/naughty-netuoso-witness-20
You can see a post made by @witnesswatcher looking into the activities that @Netuoso has been up to.
While I don't think that any sort of self voting to this level would be acceptable regardless of what they are doing for the platform. (Considering the platform would fail if everybody up voted themselves to this level)
It is extremely important to point out all sides of the story when trying to "analyze" or "investigate" something.
Always remember, you can learn from anyone
Even those you highly disagree with most of the time. @Haejin
-BiasNarrative