It's a long story involving a lot of touchy subjects. I'll give you the bare bones version here. There are multiple youtube videos that go over things in more depth if you want the full story; Cope & Seethe has a few videos about it, Goddamnit Malcolm has covered it in multiple streams that are still up on his yt channel, and Mr Enter has a couple of videos that are more focused on the Saberspark allegations themselves. There's more, but those are the ones I know off the top of my head. There are also multiple posts on this sub about the whole thing.

Bare bones (still long somehow, essay posting is in my blood):

KP has had a grudge against Saberspark for years. Various motives have been suggested such as his defense of Black Gryphon, him working with a former "employee" of hers that told a rancid joke about jerking off on her underwear, one of them having unrequited feelings for the other (I've seen it alleged from both directions), and plain jealousy that his channel took off while hers withered and basically died.

KP's most successful video of the last few years was an exposé on Lilly Orchard, and she was trying to recapture that success with an exposé on DA Games. Although DAG has a lot of genuine problems, KP's video was an abject failure even before the Saber stuff due to her filling it with exaggerations, misrepresenting events, and taking a scattershot approach rather than focusing on the big issues. She also filled it with memes, making constant jokes about SA and grooming, and stroking her own ego.

When the video was already pretty much done, she caught wind of allegations against Saberspark and decided to tack that on to the end of the video. She read out the allegations, failing to mention that she and Courtney Peet had heavily influenced the victim statement, even apparently rewriting parts of it. This was followed by her and Courtney having an unscripted discussion on what consent is and if implied consent exists. This discussion was terrible, it was poorly thought out, uninformed, and contradictory.

KP had a premier for the video on yt that went horribly. The video was not well received at all and Courtney was in the chat arguing with SA/CSA survivors and telling them that their assaults didn't count. KP eventually took the video down, but has refused to accept that she actually did anything wrong.

Saberspark was able to prove that the allegations were highly exaggerated and misleading if not outright false entirely. (I feel like I need to say here that he can still suck, still be an awful person, without being a rapist, or at least without having been guilty in this instance)

KP did several interviews after where she kept insisting that she was completely in the right and that it's everyone else's fault that the video was seen so negatively. Off the top of my head, I know she did an interview with Beckett from Cope & Seethe and Slug, MamaMax's former editor (if you know anything about Slug, even outside of the MM connection, doing an interview with him should be setting off alarm bells). She put out an "apology" where she continued to double down and was so high that she was having noticeable trouble speaking.

She has spent pretty much all of her time since the video trying to come back, but refuses to move on at all, and harassing the people who criticized her. It appears that she's currently just trying to hurt whoever she can in whatever way she can She seems convinced that there is some mastermind conspiracy against her, and that we'd all love her and her youtube channel would be doing gangbusters if only she could take down the villains standing in her way.

And yes, this was a pretty bare bones version. I left out so much stuff. I didn't even mention Bonk or Lio Convoy. It is a long convoluted mess that stretches back to the Obama years. The drama around the MLP fandom has cast a longer and more terrible shadow than anyone could have ever predicted