She doesn't seek them out. They find her name, often late at night, sleeplessly searching the Web for some sign that there are others who have lived in the same hell and survived.
Madness string 111423
As an experienced seamstress, I would say the more experienced the stitcher, the less likely they would want to do it. Those who sew know what it truly involves, and the hours, weeks, months of hard labor that go into a wedding gown, not to mention that quality fabric, makes a huge difference in the finished product and the price.