Should it be a problem? I was just curious what he meant by it, if anything. If he's doing it for a reason, the reason is lost on me unless I know what it means...
Nice job on the sifter! Looks pretty sturdy. I think you're right about adding washers to the screws holding the floaties. Should help keep those screws from pulling through. Good job!
Nice job I agree need the washers and I bet you could find some Plastic ones to work for it but nice design as well I built one out of wood as well and used it one time I coated the wood with a spray on Rubber sealer as well