According to /u/Spez, Reddit CEO, the reports of messages edited without any user consent or knowledge are correct as he admits to have done it so himself:
Hey Everyone,
Yep. I messed with the "fuck u/spez" comments, replacing "spez" with r/the_donald mods for about an hour. It's been a long week here trying to unwind the r/pizzagate stuff. As much as we try to maintain a good relationship with you all, it does get old getting called a pedophile constantly. As the CEO, I shouldn't play such games, and it's all fixed now. Our community team is pretty pissed at me, so I most assuredly won't do this again.
Fuck u/spez.
The edits were made in a thread linked from the Washington Post which described the recent ban of the /r/pizzagate subreddit which tried to uncover child-molesters and recently moved to voat.co.
(Score: 2, Funny) by Ethanol-fueled on Saturday November 26 2016, @11:18PM
So instead of posting on a niche Mongolian patesserie forum (don't bother telling us what to do, we have our minds made up already) you could be advocating freedom of speech on Reddit, where minds are much more impressionable.
Come on, Fido, go ahead and make life better for the rest of us, will 'ya?
(Score: 0) by Anonymous Coward on Saturday November 26 2016, @11:42PM
Don't mistake, I don't use reddit except for time wasting, I don't have an account or participate in the discussions. Doesn't mean I'm unable to see through your veil of hate and stupidity. I advocate freedom of speech everywhere, whereas you simply spread hate and anger with the occasional good point.