On a side note the INTJ will show his incompetence on his own, he doesnt need to be called incompetent. This pertains more to real life though, not sure how much it shows in the boards here. And its so interesting when it happens because its kinda like a laugh, mixed with a holy shit, oops, sorry, all wrapped up in Fi. Of course those are the healthy ones and open to being wrong. Of course healthy is my personal opinion because things are about truth, not some image people try to maintain. Truth leads to moving forward, while putting on some facade of an image is all about being fake.