It sounds to me as though you're a bit too fixated on what annoys you. Sometimes we recognize things that just make us shake our heads in disgust or disapproval, but some people ruminate on this a little longer until it makes them rage with the idea that they have a stronger perspective than others. I will say that I do notice some of these things myself, but making a post about it seems like wasted energy to me. If somebody is posting something then it's something that aligns with their current experience, growth or perspective and even if it is repetitive, silly or idiotic to you. Acting angry or above the opinions and views of others is not going to help anyone.

In my view, INFJs come in different flavors, as do all other personality types. Some people are more healthy and educated than others. Absorbing all of these posts can be beneficial to some, even if they can be annoying or repetitive to others. We have to remember that this subreddit wasn't created to cater to any one person and since we're all on different pages and different stages of growth then it just makes sense why things are the way they are.

I feel many INFJs on here do jump to massive conclusions on the types of others. Many people on here have an image of a personality type built up in the mind while neglecting the cognitive functions, or at least neglecting delving into them deeply. This is just what I've noticed.

So much shit on here is subjective and spoken as though it's just the way it is. The same applies to life in general. People constantly generalize these days without taking into account that we all have our own experiences and many of us have had completely different upbringings and reside in completely different atmospheres than one another. The more that I think about it, the more that I get your frustration. I tend to skim most posts on here and if there's something that I can relate to then I'll comment. I just ignore the rest if it isn't something that I feel that I can chime in on.