Thanks for pointing that out. Is the humane society doing all that? I'd say it's easier to spot a stray cat vs. one clipped ear out of hundreds of stray cats.
Costs money to do that. It'd be inhumane not sterilizing the butchers' knife inbetween cuts and not tranquilizing the feline in the process, I'd dare say. Don't want to hurt em you know, can't stand seeing animals suffer let alone humans