Anything you post here can/will remain forever on some malicious instance that doesn’t honor deletion requests.
That is true of literally any social media; Twitter, Reddit, Instagram, Facebook, there is nothing preventing someone from screenshotting a post, or a web crawler from archiving it, and then keeping that information after it is deleted from the original source.
"average person changes sheets 4 times a year" factoid actualy just statistical error. average person changes sheets 25 times per year. Sheets Georg, who lives in cave & changes sheets never, is an outlier adn should not have been counted.