[JohnFen]

It may have helped you vent your (completely understandable) frustration, but that's about all it accomplishes. From your brief description and comment here, it sounds to me like this candidate's goal was just getting an offer letter to use as leverage to get a better deal from the place he really wanted to work at.

That's an awful practice, but is also reasonably common. I think a better response would have been to not say anything to the candidate at all, but just put him on your "do not hire" list and move on with your business.

[nrjpoddar]

Fair enough but my response was purely so that the candidate learns and hopefully understands the feedback. I have seen candidates get an offer letter not sign/accept and then decline but here the candidate was literally supposed to show up in our office but decided to just ghost instead. It was a new experience for me but looks like it's fairly common nowadays.