How dumb do you want the people you hire? You place an ad on this site and when people send you a resume you don't even acknowledge you received it. Then next week you run the same ad as if nobody replied to you. Many qualified people are not working and are really looking for work not just a position. If you don't want them at least reply to their e-mail. It would be great if you would state why you don't want to hire them. I.E. Not enough experience, overqualified, bad reference, unwilling to travel, etc. You may be the one looking someday and I'm sure you wouldn't like to be ignored. Treat people like you want to be treated. Nobody wants to work for an S.O.B.
This is CABL.com posting #37569. Tiny Link: cabl.co/mjV7