@OrangeAppled and anyone else interested.
I've been trying to think of a way to explain this issue more analytically than speaking from frustration.
When anyone describes their experience with an MBTI type that is negative, including multiple experiences with a particular type, that information is not verifiable or falsifiable by anyone else. It is your experience and perception and should be accepted as such. My experience and perception with the same type in this instance is different, so who is right? I have zero desire to invalidate anyone's experience, especially if it is painful and unpleasant.
Where the line is crossed is when personal experience/perception is universalized. Your experience/perception and mine are both infinitesimally small in the context of the whole of reality. Whatever an INFJ is as an entire category, neither of us knows. Each person should be free to share their experiences with a type, but stop there and not impose those experiences onto new unknown people. Edit: Also in your post that triggered my reaction you appear to be actively trying to get people to think badly about INFJs in general, which is a form of trolling. Sharing experiences is one thing, but this active attempt to tear down an entire type is not right, rational, or reasonable in the least. /Edit
As far as the witch-hunt threads you mentioned at the INFJ forum, that sounds terrible, and I abhor those threads, although I do think it is important to call people out when they cross the line, but it should not be done by ganging up on them. Leave it between two people of comparable power. The power imbalance created by witch-hunt threads is really horrible. I didn't see those when I was on the INFJ forum, but I would go after anyone who started one there. Those were common at the INTP site, and I took on Hustler directly a few times for it and got slapped down pretty hard. Not every INFJ wants to do witch-hunts. I will take you at your word that it happens, but please don't universalize it or any other behaviors. Leave those data points exactly as they are in reality and be open to obtain new data points that could contrast with the old ones instead of using confirmation bias to continually reinforce previous assumptions. That goes for all of us that think with MBTI.