They just changed your username to DELETED?

This would be funny if it wasn’t so concerning.

Might be that your account is DELETED, their systems recognise it's DELETED, but you were somehow still present in their mailing lists.

Weird shit can happen when one applies right to be forgotten. For some purposes data must be kept nevertheless (for tax obligations for example) while for marketing not (and even then some might argue legitimate interest and not fully deleted all instances of your data). And then the week after some stupid asshole reconcile invoice data with mailing lists and here you are.

Hi, Deleted. I'm jackhammer_joe

Thank you for coming to my DELETED talk

Lol, I don't have a meta account, yet I get a newsletter (had oculus, didn't agree to transfer).

I am 100% certain no company deletes anything and just moves stuff to a shadow database, sometimes not even that.

Make sure it isn't phishing. But if it isn't, then it would mean they still have your e-mail address stored somewhere. I could imagine that the mailing list subscription stores the e-mail address separately from the account info and they just fucked up deleting it. Might be worth trying to contact them.

Well they didn’t delete your account fully and they still have your email. When you hand information over, don’t ever assume or trust them to fully get rid of it.

If you're in Europe I'm guessing that you have a GDPR breach case.

Note that I'm not a lawyer and don't pretend to be one on the internet.