Ruby said
If someone proves themselves incapable of handling criticism (and what GM hasn't ran into this issue before?) then they're out, gone, kicked. It's simple, easy, honest, and straight-forward.
To my understanding, this is what he has been saying though.
Dervish said
Honestly, the way you wrote your point made it sound like you'd be doing that even if you had absolutely no problems with the character submission. Since there seems to be some confusion, do you mean if a sheet wasn't up to snuff and you waited a few days before asking a person to submit again? I am kind of getting that that's what you were meaning to say, correct me if I'm wrong.
If he has no problem with it, he has shown that he would accept it. But, absolutely no problem with the submitted char in the first glance usually meant either 1) He helped making it in the first place, 2) The creator of the char has been with the GM that they each know the other's preferences. Unless you have one of the two, then you would have a problem, minor or otherwise.
Also, no, if he had problem with the sheet, he outright say it after he read it, tell what's the problem is and then wait.
I'd personally just go over the sheet, say what was wrong, and say if they want to resubmit the sheet with the requested issue addressing then I'd be more than happy to let them try again.
That is what he has been saying though?