Is there any reason why I shouldn't clean iron-plated hot soldering
iron tips by poking them into this curly stainless steel ribbon
material (3M Scotchbrite stainless steel scouring pad):

http://tinyurl.com/n48keq

instead of poking them into similar curly ribbon material made of
brass (Hakko soldering iron company's cleaner):

http://tinyurl.com/nf7clh

Does the stainless steel eat through the iron plating?