You can see why this would be: if someone is accused of trafficking in child porn or running a pig-butchering scam, it would be perverse to shut down their account but give them all the data they need to go one committing these crimes elsewhere.
But even where you *can* invoke the EU's GDPR or California's CCPA to get your data, the platforms deliver that data in the most useless, complex blobs imaginable.
17/
For example, I recently used the CCPA to force Mailchimp to give me all the data they held on me. Mailchimp - a division of the monopolist and serial fraudster Intuit - is a favored platform for spammers, and I have been added to *thousands* of Mailchimp lists that bombard me with unsolicited press pitches and come-ons for scam products.
18/