If I were using a system where rejecting a candidate was a one-click operation, and it also sent them a notification, I would click it. That's what it would tak

If I were using a system where rejecting a candidate was a one-click operation, and it also sent them a notification, I would click it. That's what it would take--it would have to be that easy. There are too many resumes. (That's at resume review stage. If a candidate has actually talked to you, including any kind of interview, then they deserve a response, and I do follow up with everyone who gets to that stage.)