I’ve done a lot of reading about different ways to knit heels and toes, reinforce them, and shape knit socks. A lot of the things here echoed things I have already read.
I think that reinforcing with nylon thread seems like a very easy, viable option to strengthening the heels and toes of the socks.
I also learned that an average pair of adult socks made with sock-weight yarn has approximately 34,000 stitches! That’s a crapload of knitting.