Layoffs at Twitter, which Elon Musk recently bought for $44 billion, are nothing new, and the new owner has already laid off roughly half of its employees and continues to do so. But not only those who, in Elon’s opinion, do not perform their work effectively enough, but also employees who are dissatisfied with the new management style of the company are fired.

Some Twitter employees have dared to publicly criticize or question Musk’s actions, knowing that such acts of disloyalty could lead to dismissal. Musk admitted yesterday that he fired an engineer who tried to publicly correct him on Twitter, and Eric Frohnhoefer wasn’t the last to go down this path — Twitter software engineer Sasha Solomon also tweeted that she was “fired for shitposting” after a series of now-deleted tweets critical of Musk, adding “kiss my ass, Elon.”

However, some discuss the company’s problems in corporate Slack chats, criticizing Elon Musk’s management style. As it turned out, such non-public communications do not protect employees from the wrath of the new owner.

Journalist Gergely Orosz tweeted that according to his information about 10 people have been fired for speaking out in a Slack channel. Platformer’s Casey Newton has sources that claim that number could be closer to 20. Anonymous Twitter employees reported Bloomberg that at least a dozen employees were fired after criticizing Musk on various platforms.

Twitter, which no longer has a communications department, is apparently tight-lipped about the layoffs, but Musk confirmed them in a tweet: “I would like to apologize for firing these geniuses. Their immense talent will no doubt be of grear use elsewhere.”