https://www.reddit.com/r/announcements/comments/5frg1n/tifu_by_editing_some_comments_and_creating_an/ Here is spez's official statement on it. Where he admitted he did it.

http://m.washingtonexaminer.com/reddit-ceo-admits-editing-pro-trump-users-comments/article/2608177 I saw when it happened. It was all over a ton of subs. Many news sites say the same. I might be able to pull up the actual thread where spez admits it if it's still up. Let me know what you think.

It makes me sad when people do this. I know a lot of Sanders voters who voted for Trump. Dismissing their concerns and making rude accusations will only make the divide larger. If you genuinely want to promote your cause and prevent another term of Trump, this is the wrong way to go about it. You'll only push them further away by being cruel and refusing to hear them out.