In response to an ultimatum from the new CEO, Elon Musk, who demanded staff choose between being “extremely hardcore” and working intense, long hours or losing their jobs, hundreds of employees of the social media platform sent moving messages on Twitter.

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As concerned Twitter users speculated about the platform’s future during the company’s severe instability, the hashtag #RIPTwitter began to trend. Musk responded to the trend with a meme depicting a tombstone with the morphed Twitter bird emblem on it.

After a few hours, he tweeted, “What should Twitter do next?”

Responses to this question from the billionaire varied from serious suggestions to unserious comments. 

One user, @lexfridman tweeted a list of improvements Twitter could make.

User @BillyM2K wrote, “twitter should allow me to make a living as a professional shitposter, somehow.”

There were also some responses that were reminiscent of the #RIPTwitter trend, where users said, “Not implode would be good,” and “Hire a competent CEO.”

The hashtag #LoveWhereYouWorked and the salute emoji were used by workers, also referred to as “Tweeps,” to tweet about their resignations in response to Musk’s most recent ultimatum.

One former employee, Andrea Horst tweeted, “I may be #exceptional, but gosh darn it, I’m just not #hardcore.”

“Today I decided to leave Twitter. Words can’t express how grateful I am to have had the opportunity to work in this amazing place with so many talented people. This was, indeed, my dream job,” another former staffer Gala tweeted. “I wish luck and strength to those staying.”

Brian, another former employee wrote, “After 8+ years, I still don’t know what to say in this Tweet. It was one hell of a ride and a highlight of my career.”

This latest purge at Twitter comes after Musk recently let go of dozens of workers who had insulted or made fun of him in tweets and internal communications. Musk then gave all staff until Thursday at 5 PM ET to answer “yes” on a Google form if they want to continue on for “Twitter 2.0”; if they don’t, today is their last day of work and they will receive a severance payout.

Immediately following the deadline, hundreds of workers began sending goodbye comments and salute emojis on Twitter’s Slack, declaring that they had rejected Musk’s demand.

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One departing worker wrote on Slack, “I’m not pressing the button. My watch ends with Twitter 1.0. I do not wish to be part of Twitter 2.0.”

Thanks to Musk abruptly firing about half of the 7,500-person workforce when he took over and the resignations that followed, Twitter had about 2,900 workers left before the deadline on Thursday. Given the volume of resignations this week, both current and former Twitter employees said that they anticipate the platform to start experiencing outages soon, The Verge reported.