It has its uses, if not for what it was intended for. Prepping food for instance, you could use it to wash out the tannins in acorns as we all saw in the Wild Food series. Of course, you could use it after washing veg as a strainer. Making tea with leaves, making a snow marshmallow if you live somewhere cold and snowy, gathering tinder and hang it up and dry it out in the net the uses are endless. It weighs nowt and packs down small, it's worth taking along as you will find a use for it. Maybe even banging your stinky socks in and hanging them outside the tent so that you don't have stinky socks in your tent all night!
Edit: I'm a twit, I thought you meant a head mosi net!