I cleaned out 400 out of 1,700 saved emails last night. While doing so, I found this from about 10 years ago.

[FakeNoose]

10. That was actually a smart thing, writing down his entire story like that

Like you say, it was probably for his future owners, just in case he should outlive you and Mrs. Charms.
But it's also a great memory jog for both of you, now that he's gone.