When I signed on to Operation 1161, the QUilts of Valor guidelines were what we decided to follow.
Because every one of those quilts go to wounded warriors, usually in a hospital setting, some even before they get stateside, there are so many unknowns of condition that it is necessary that they be as clean as possible.
So ... I figured, I will do it for them, but then I will go back to not washing.
However, since I have read the replies above, I have decided that from now on, I will be washing all of my quilts.
I have a DDIL that is deathly allergic to cats. My cat doesn't get on the quilt, but she gets sick just being in a room where a cat has been.
I wouldn't wish that on anyone.
Thank you for asking the question ... I am one convert to ALWAYS washing quilts upon completion ... I do not, however, foresee a time that I will be pre-washing my fabrics.