I will keep doing it too! Now I'm not mean, I acknowledge their needs but they do need to learn to function on their own. Sometimes whatever they want, just can't be done the way they want or when they want. Sometimes I simply tell them that I am going to ignore them. It is usually because they are not listening to what I am saying and arguing with me when I am agreeing with them. This is the communication ignoring, I am still aware so it is not true ignoring but I refuse to respond, thus they think I am ignoring them.
I also have mentioned how I believe in free range living in some aspects with my children. Yes there will be time that passes that I am not aware of what my children are doing exactly. Though I do know whereabouts they should be. Particularly at home I can go an hour or more not knowing exactly what the older two boys are doing. Our house though is set up in a way that they have their safe places to play and they don't get into the things they shouldn't. Anything dangerous is also locked up or put up and out of reach.
For my sanity sometimes I need to ignore my children. I can't fuss over them every moment of everyday. I just can't it stresses me out and it's not fun for them. Honestly it works for us. I never ignore them completely. I am always open and willing to listen if they want to communicate with me in a suitable manner. I should mention that suitable is adjusted for the child's age. I don't expect lil Squish to tell me what he wants with words. Though hitting me is not the method of communication that is suitable.
Yup I ignore my kids, but they are cool with it and it works for us. I fully pay attention to them a lot more than I ignore them.