To Knot or Not?

Seamstress c.1859
Image from the Library of Congress

I'm probably a little too focused on minute details. I'm curious about knotting thread when hand sewing.  I know I've seen examples of both knotting and using basting stitches but I can't find any documentation on it at the moment.

I've tried both approaches and I find peace of mind in knowing that my gowns' seams have knots for, from my experience, the basting stitches do not hold as well. I'd rather knot (haha...bad pun I know) spend time mending those seams when I can sew / research other projects. (When embroidering, I also favor knotting even though--I know--it's not advised.)

Do you knot or not?