While most professionals agree that sending a post-interview follow-up is common courtesy, when you add unnecessary barriers to your hiring process you risk coming off as a sociopathic weirdo, among other considerations:
Musings of an HR "Professional"
While most professionals agree that sending a post-interview follow-up is common courtesy, when you add unnecessary barriers to your hiring process you risk coming off as a sociopathic weirdo, among other considerations: