I personally found the 5th reply to the same comment thread a little repetitive. Unless there is anything more to add to the conversation a simple upvote/downvote on an already existing thread is probably enough. I don’t think I ever downvoted a post though, just because I sorted by top/hot.
I still wouldn’t believe it. Even the 404 article does not confirm anything and the ad company does not provide any details.
This whole thing feels like marketing, claiming something outrageous to get people talking about your company.