I hear time after time that MBTI is only a set of logical groupings, it's not scientifically proven, you can't use it to dogmatically, etc. I then hear you need to consider the nuances of how the functions may be ordered, how strong they are etc.
My question is this - and I speak from the standpoint with no experience in research - why can't it be proven? At least in some form, fashion, or respect. Has nobody ever tried? Are there difficulties in running surveys or experiments to determine accuracy of the profiles? Do the studies show flaws and that it doesn't work (that we don't hear about)? There seems to be a large body of information out there, but always "no proof". Is there anything in the field of psychology that can be proven?
If there is no proof that it works, and people don't believe in it, then why are we all here?