Such memories! Such laughter!
Anyway, the long-awaited fix to change account inactivity from 6 months to 5 years before account is deleted, has been submitted! Well, do note that change only applies to accounts played at least 3 months. Accounts played less than 3 months before inactivity still have the 6 month inactivity limit.
It should be live sometime in the near future (days to weeks).