Absolutely, positively... does not matter.
And when I say does not matter, what I mean is it is individual.
I can eat whenever I want and as long as I keep my food within my Points I'm on plan and I lose weight.
Some people might find that eating at night is just mindless grazing; they're adding calories to their bodies, because they're bored or looking for something to do while watching TV. They aren't actually eating because they're hungry... the solution to that? They just make the kitchen off-limits.
However, it somehow turned into this big "You can't eat at night and lose weight" myth. That's just not true. For some people, it's better if they avoid night eating. For others it's not a problem, and therefore they don't have to avoid it.
Do what works for you. And as long as you're following plan, you'll be fine.