That's a very good summary. I was trying to write my own, but it had become 3 long paragraphs without even covering the half of it, haha. What I'll do instead is link to all the discussions that are relevant if you want to find out what has happened.

https://www.reddit.com/r/DreamWasTaken2/comments/kkrueb/dream_has_gone_too_far_petition_fulltext/ (A petition written with very inflammatory language, and I think the actions proposed are over-the-top, but the summary explains well why people are upset at Dream and causing the drama. Links to all the relevant videos and papers by Dream and the mod team are included. EDIT: In no way am I endorsing signing this petition.)

If you want less incensed discussions, go to the below:

https://www.reddit.com/r/DreamWasTaken2/comments/kktcck/everything_regarding_the_cheating_situation/

https://www.reddit.com/r/DreamWasTaken2/comments/kknrgs/a_response_to_a_commentmy_opinion_on_the/

https://www.reddit.com/r/DreamWasTaken2/comments/kkky10/information_literacy_an_easy_way_to_check_both/

For me it boils down to, 1) it is almost completely certain that he cheated based on the stats, 2) he has behaved quite immaturely by attacking the moderators, who have been very professional the whole time, 3) he is letting his stans be toxic and send death threats, 4) he is censoring all negative criticism of him on his subreddit (some of which was just reasonable discussion about the evidence), 5) his statements and actions continue to be contradictory (which is why people are saying he is gaslighting and manipulative). There is evidence for these apart from number 3, so it's not just hearsay.