Why do threads get re-dated?

[SerialKipper]

Like this one

I keep thinking, "But surely I've seen this before," and checking OP date. And now here's one I really and truly defuntly no arguing defuntly remember.

Or is it me?

OP there clearly states she has told her birth story before on MN, presumably you read it then

Yes, we agree.
We don't re-date anything.

We sometimes move threads but we don't re-date owt.

hth

Yep, I know she says she's told it before. As you say, she clearly states so. But the responses seemed very familiar too. Then again, it is MN...

(Kinda assumed it would be a tech issue if it were happening - not suggesting it was deliberate!)

missing in above!