People are nagging about HR but did those nagging people done any recruitment on their own? It is not that you hire 1 person and you have all the time in the w

People are nagging about HR but did those nagging people done any recruitment on their own? It is not that you hire 1 person and you have all the time in the world to get to know him/her. There is limited time, limited information and hundreds of people to be hired with hundreds of applicants. Hiring is not scaling well, because it is time bound, someone has to read that CV, someone has to make calls. You have to have like 30mins - 1hr chat with applicant. Only way to optimize time is to throw away CVs which is not optimal because you might throw away good candidates.