> there was never a period when blogs were hand written.

I’ve seen exactly that. In one case, it was JPEG scans of handwriting, but most of the time, it’s a cursive font (which may obviate “handwritten”).

I can’t remember which famous author it was, that always submitted their manuscripts as cursive writing on yellow legal pads.

Must have been thrilling to edit.

Isolated instances do not a period define. We can always find some example of someone who did something, but the point is it didn’t start like that.

For example, there was never a period when movies were made by creating frames as oil paintings and photographing them. A couple of movies were made like that, but that was never the norm or a necessity or the intended process.

The fact that this one example stands out so clearly to you gives more Credence to the fact that this is so rare and not a common aspect of blogging.