I'm told by the mother-in-law that this is not darning. It's stitching. Darning is a more complicated process of stretching the sock over a lightbulb or some such item, performing an unraveling of the upper portion of the sock to acquire matching thread, then stitching tiny connecting stitches to secure the complex weaving motion of the darning art.
Hey, I think that anytime I am stitching together socks that have a hole and making them wearable, even using the son's heel as the lightbulb, I'm darning. Five pair, all wool, all fail in the same place, all within one week of wearing! What a waste! Too bad I tossed the wrapper or they would be returned. (Which is what the manufacturer is counting on! As I have related before--it's a conspiracy!)
So, I'm darning! At least I'm not damning!