Nah, we don't want to cause trouble. We would report them if it was any worse, though.
Recently they've been taking care of the baby, but on some nights no one wakes up to hold the baby when she cries. So we just have to listen to a baby crying at night. :\
It's fairly obvious that on those nights, the parents are ignoring her because NO ONE can sleep through that. It would be even louder inside the house than what we can hear from here.