It could be because some people were using proxies/vpns to cast multiple votes? Maybe they have some way to check that and there were too many of those? That's my best guess. I used to put ads on websites I owned and sometimes they wouldn't pay me for percentages of my clicks and such because they were people on vpns. Just a thought. It's unfortunate that there is a dispute about this though. If anything, being able to be paid for being on social media as an average every day person, not just an "influencer" or some shit.... should make steem number one to begin with. Man, too many people still need to wake up. lol :)