I bought these to try actually skating in them. I skated about 3-4 hours in them before switching back to my old socks. They're well-made socks, relatively soft, and they don't slip around.
Two problems that were dealbreakers for me: first, the material they are made out of is slightly scratchy - a sensation I imagine might be fine, even pleasant, inside of regular shoes. Inside of figure skates, for me, that just meant I was constantly aware of my feet feeling ever so slightly uncomfortable. Much larger is that they are just a bit too thick for figure skating boots, which are meant to fit snugly all around the foot. The extra thickness interfered with the fit of my custom insoles and made it more difficult to feel the blade under my foot, and it also made my skates feel too tight on the tops of my feet.
I don't think, for those reasons, that these are great skating socks. However, I do think that these would make great *boot* socks - they're thinner than regular socks, warm and cozy, and they don't slip around a lot. So I'm going to try wearing them with my riding boots to see if they work better there!