Seinfeld alum Jason Alexander, 63, sounded off about Elon Musk, 51, announcing that Twitter would remove the verified blue checkmarks granted to famous and notable people.
The checkmarks are expected to disappear by Saturday.
Accounts that had them are being asked to pay up to $11 per month to keep them.
‘Friends, there are bigger issues in the world than the blue verified check next to my name on this account,’ Alexander wrote on Twitter. ‘But without it, anyone can allege to be me. So, if I lose that check know I will leave this platform. Anyone appearing with it = an imposter,’ he continued.
He added: ‘I tell you this while I’m still official.’
Not having it: Seinfeld alum Jason Alexander sounded off about the removal of the blue checkmark on Twitter
Leaving: Jason, 63, said he will leave the social media platform when his verified status goes away
The Curb Your Enthusiasm alum isn’t the only celeb to sound off about the end of the free blue checkmark, which was previously a free feature granted to ‘active, notable and authentic’ accounts of people such as politicians, celebrities and journalists.
Musk has been searching for new ways to monetize Twitter since buying it for $44 billion in October.
In particular, he’s spoken out about how he finds the blue checkmark system to be ‘corrupt’ and simply a status symbol for celebrities and journalists – two groups he reviles.
Over the weekend, a number of famous people voiced their displeasure at Musk’s latest change to the social media platform.
William Shatner, 92, tagged Musk in his tweet and wrote, ‘I’ve been here for 15 years giving my (clock emoji) & witty thoughts all for bupkis,’ he wrote. ‘Now you’re telling me that I have to pay for something you gave me for free? What is this – the Colombia Records & Tape Club?’
Meanwhile, actress Jennifer Tilly, 64, wrote, ‘It was SO hard to get my blue mark, and apparently it’s gonna be so easy to lose it. I look forward to being a nonentity again.’
And Monica Lewinsky, 49, shared a screenshot of all of the different accounts already impersonating her that have blue checkmarks simply because they subscribed to Twitter Blue.
‘well this is going to be fun…,’ she wrote alongside the screenshot.
More ire: Actress Jennifer Tilly is also not in favor of losing her verified status
Already started: Monica Lewinsky shared a screenshot of all the paid Twitter Blue users already impersonating her
But the removal of the legacy blue checkmarks aren’t the only changes coming to Twitter.
Starting on April 15, users who do not pay for Twitter Blue – which costs $8 per month for Android and $11 a month for iOS – will no longer be able to vote in polls.
They also will no longer have their tweets appear in the ‘For You’ tab, which shows popular tweets that are boosted by an algorithm.
Musk said the changes will stop ‘AI bot swarms taking over’ the site, although he stopped short of explaining exactly how.
Justifying his changes: Elon Musk reviles celebrities and journalists, two groups that have benefitted from the older, free, verified blue checkmark practice
The CEO said that paid social media will be ‘the only social media that matters’.
‘This is the only realistic way to address advanced AI bot swarms taking over. It is otherwise a hopeless losing battle,’ Musk tweeted about Twitter Blue.
Jake Moore, tech expert and security advisor at ESET, challenged Musk’s suggestion that the decision is anything to do with removing Twitter bots.
‘This isn’t just a response to AI bots swarming the site, this is a response to the company hemorrhaging money,’ Moore told MailOnline.
‘Musk has obliterated the company and is now looking at removing features from unpaid accounts.’
Sayonara: Jason Alexander is just one of many notable people planning to leave the platform when the floodgates for accounts impersonating them open