I've seen lawyers advice that [0] doesnt do the trick anyway, ie deleting the key is not enough to comply. GDPR does seem like the most likely culprit here, if

I've seen lawyers advice that [0] doesnt do the trick anyway, ie deleting the key is not enough to comply. GDPR does seem like the most likely culprit here, if they've been planning an aquihire for a while it wouldn't have been worth implementing GDPR and Twitter likely made it a condition that the service is shut down before the acquisition completes I'm quite surprised none of the cloud vendors were interested/could offer more than Twitter for this team though, seems like a logical service to add.