> I just want to know one thing: did or didn't they leak the credit cards?

Does it really matter? If your card was used with Linode, it should have been blocked by now anyway.

Yes, because it is a huge pain to go through for no reason.

Allegedly no, the deleted the breached data on the condition that Linode mention them in the security release (from the article).

Not publicly, as far as I know. They claim to have deleted them, but I don't think it's exactly possible to prove you've deleted every copy of digital data. You should probably assume they're compromised.