I must say he's shown nothing to make me think he wants to eat the socks, just play tug of war with something smelly, or sleep with something smelly i think he feels comforting.
I mentioned them being soggy but that's from the tug of war we play.
It's not just socks he swipes, there just his favourite, underwear and T-Towls or even bath towels while your drying are high on his list to.
I will keep my eye on him though and generally don't encourage him to get socks, I'd much rather play with his toys than dirty socks. 😀