Airline Club

I've searched the forum and found a bit of information regarding inactive accounts but can someone summarize the rules for dropping them?  There are a ton of inactive airlines and it would seem useful to eliminate them completely from the game after perhaps five or ten gameyears of inactivity.  Yes/no?  Is there a good reason to keep them around?

Hehe we have changed the rules throughout the years

Currently, we will reset large airlines (>= 50 reputation I think) with no logins for 180 days and small airlines for 30 days. Souce cod eis here https://github.com/patsonluk/airline/blob/8630dde80445cff0e5e62a341731ffb89c576677/airline-data/src/main/scala/com/patson/UserSimulation.scala#L9

Take note that it's a reset and not a delete. There are a few reasons:

1. Reset airline will no longer show in any UI components unless explicitly flagged to show it
2. Reset airline does not slow down the simulation as all of the flights are removed
3. Since the cost of keeping them is low, we want to keep them around in case if absent players want to come back and play - they will start with a higher balance due to reset. Many players come back after a long absence
4. Deletion of airline will cause various challenge and likely break the code - showing history on things etc
5. If an airline is removed, and later on a new player used the same name. It might confuse players in the game - It's true that once a name is taken, it's taken forever. At least that's the case until we consider regular world resets in V2