When we first added haunted hats into the list of craft hats, we did test that haunted souls did not work as a craftable hat because we have filtered them out (they did not have a craftable attribute). The schema must have been changed recently to make it works now. So we are once again screwed up by something we do not really responsible for.
But anyway we will pay you back. Simply leave your name here if you are traded haunted souls for your craft hats. Once I have gathered the total loss I will pay you back what you have lost.
Please also state that in which way you would like to be paid back. I could give you craft hats or metal but you have to give me back the soul and the other items you have got if you want craft hats. Otherwise I would only pay you 1 ref per hat you lost. If you want to give back any items, simply leave them in your bots.
To those who have passed your haunted souls to other people, I want to remind you that getting scammed is not a valid reason to scam others. You should have just wait us to pay you back instead of passing them around and let more and more people know about it. And do not report here because you have already got your craft hat back from others.