[earless1]

That's as meta as it gets

I could have sworn that Reddit prevented commenting and editing on post that are this old.

[amyjess]

You can edit or delete any of your posts at any time.

Until recently, you could reply to or vote on any post or comment less than 6 months old, regardless of the age of its parent. A recent change prevented voting or commenting on any thread where the OP is at least 6 months old, even if the comment you want to interact with is newer than that.

[personjerry]

HN, on the other hand, does prevent editing after some time.

[dredmorbius]

About an hour in my experience. Pity as I often find glaring typos later.

[jegutman]

I think they do. Only explanation: time travel