You made it obvious by your use of "smillies" what your opinion is, and you don't want a discussion; you want an argument . It depends entirely on your reason for working dogs. If , like me, you hunt for the table, dog food, or beer vouchers, you will hunt day or night, and take what you can. If you are only in it to see a dog work a hare, and aren't bothered about the kill, stick to daytime hares, but don't knock other people.
Cheers.