https://www.bungie.net/en/Groups/Chat?groupId=1724

Bit of a bummer that we won't be able to keep our 9 years because the clan was founded by an orphaned account. Kind of weird that you can't elect to convert a group to a clan and inherit the years after the transition.

To make it even weirder, since they added account recovery after the transition, I was able to get that orphaned account working. Thought I'd be able to make the clan since it's supposed to be reserved to the founder, but it says the name is blocked until the 20th when they'll release it :(