Just tested and didn't have any issue adding a CW to my wishlist. Is anyone still having trouble with this?

Ohhhh, I see now. I hadn't actually clicked into the stop. The Custom Wearable Feed page (when you first hit CW shops) it works on.

I'll file a report to see if it can be fixed.

Reconfirmed that this is still an issue as of 3/8/17

This is fixed guys! Please confirm for me :D