Autolocking Threads that have not had a response in over a year

[Almagnus1]

Yes, so instead to keep threads from being locked users will necro threads annually or biannually. Then again, that's done anyway. I don't think this would really solve anything.

Could this process even be automated on these forums in the first place?

If it's done nightly, once you get through the initial chunk of locks, it wouldn't be that much of an issue TBH.