I love psychology and learning how to be happy. I'm telling you about my experience. My thoughts may not be helpful.
I've found that when I'm stressed in my own life, I'm more sensitive to everyday things. I can't fix the things stressing me. I can "fix" someone else.
I've also found over the years a way to deal with things so I don't get bothered. What I say to myself helps a lot. First, I recognize that I'm irritated because thinking of what's said or done takes my mind off what is happening in my life. Criticizing others is a coping mechanism that never worked for me. It just made me cranky. So, I say stop. I remind myself that what anyone else does or says is not my business. Each of us have different issues. We are only responsible for our own issues.
With counselling I learned to exam myself to learn why I reacted negatively. Talk, words and actions that upset me are often related to something going on in my own life. Once I deal with my issue, what others say or do are no longer related to me and I'm less apt to get irritated. I've learned that it takes time to learn how to stop being critical. In the meantime, I tell myself to stop and move on. I can control how I feel.
What I say is just a possibility, based on my experiences.
Could these articles be irritating because you're needing to defend your way of parenting. Reading about labels and criticism trigger something in you. When we become aware of the trigger we can respond unemotionally.