It took me 11 years to get this merged into Core.

In fact, my second bitcointalk post, in Dec 10th 2010 (!!!), was to reply to Satoshi with a minor technical correction to a post Satoshi themselves made proposing the beginnings of the idea of replace-by-fee: https://bitcointalk.org/index.php?topic=2181.msg28739#msg28739

As far as I know, it's my one and only interaction with Satoshi; I didn't get a reply. Satoshi's last post to bitcointalk was two days later on Dec 12th, obviously too embarassed by my technical correction to continue working on Bitcoin. :D