It was Kaguya Luna's fault.
>Remember the Gamebu?
Gamebu was at the height of their popularity, but as their popularity goes up and so does their ego but that's understandable we're talking about celebrities here, popularity is a big asset. Kaguya Luna / Pmarusama approached them, compared their earnings and told her gamebu friends that they were severely underpaid. The circle of friends voicing the characters of gamebu then made insane unsustainable salary hikes for a yet volatile unproven industry (hololive was still a drop in the water at that time). Painful but given the harsh unreasonable demands, Unlimited Co., Ltd management has to sadly let go of the characters' voice actors who didn't account for the costs of labor like video editing, scriptwriting, qa, etc they were so full of themselves when all they had going for them were the voices while Unlimited handles all the work and financial risk. Later it would be found that Pmarusama was going around giving the same bad advice to other vtubers believing she was 'helping' them leading to more big controversies like Kizuna AI graduating, turns out Kaguya Luna has been seducing and having affairs with the husband of Kizuna and making financial promises to him as the money from advices she made came at great costs, only later as p-marusama would this controversy become public after the second baby of Nozomi with the aforementioned husband. It's the one time sony made the right decision to drop a high grossing entertainer who wrecks the career of everything related to her and destroys families.
>Remember Uruha Rushia?
Time for the big reveal: Pmarusama wasn’t “caught” by Korekore, it was a joined union to highlight how pitiful her dear Oyabun senpai had become post her end as Kizuna Ai. The article cleverly leaving out all the personal details, yet having just enough to identify Nozomi and Nanamori was proof of this. So what does this have in connection with Rushia? Well, COINCIDENTALLY, Rushia’s contact with Korekore was the last she made as a hololive member, about her scandal with Mafumafu, who COINCIDENTALLY recently revealed his connection with Pmaru after dropping an orisong written by her. Yes, homewrecking trails her action, and you can smell it from a mile away.
>Remember Yozora Mel?
You can assume the same thing happened with Mel, as her case of being harassed by her manager was observed closely by NaruGOD who does investigation in Korekore’s turf as an arbiter of truth against drama mongering. Even after 5 years, Mel still hasn’t found her justice, and as a last resort after getting pressured by Pmaru’s release of “Vampire” as a MORE THAN OBVIOUS reminder, she ended up giving NaruGOD a bit too much info in hope of finding justice, and got herself terminated on the spot. The case will now forever remain something small that was solved years ago, and not that it was the INNK frog that was also Mel's manager. After some time Cover finally revealed statement of INNK disbanding despite him already working with Kamitsubaki before that, and still does now. And you know who owns Kamitsubaki Studio? Avex, Pmaru's ally against Brave.